Finding the Fourth Proportional to 1,039,566.72, 1,436,006.21 and 783,380.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,566.72 : 1,436,006.21 = 783,380.18 : x
2. Step 2: Convert to fraction form
   1,039,566.72/1,436,006.21 = 783,380.18/x
3. Step 3: Cross multiply
   1,039,566.72x = 1,436,006.21 × 783,380.18
4. Step 4: Simplify right side
   1,039,566.72x = 1,124,938,796,090.89
5. Step 5: Solve for x
   x = 1,124,938,796,090.89/1,039,566.72
6. Step 6: Final answer
   x = 1,082,122.75