Finding the Fourth Proportional to 1,663,705,196.42, 2,295,984,898.05 and 921,149,237.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,705,196.42 : 2,295,984,898.05 = 921,149,237.30 : x
2. Step 2: Convert to fraction form
   1,663,705,196.42/2,295,984,898.05 = 921,149,237.30/x
3. Step 3: Cross multiply
   1,663,705,196.42x = 2,295,984,898.05 × 921,149,237.30
4. Step 4: Simplify right side
   1,663,705,196.42x = 2,114,944,737,691,075,840
5. Step 5: Solve for x
   x = 2,114,944,737,691,075,840/1,663,705,196.42
6. Step 6: Final answer
   x = 1,271,225,660.80