Finding the Fourth Proportional to 1,230,611.72, 1,843,445 and 613,253.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,230,611.72 : 1,843,445 = 613,253.48 : x
2. Step 2: Convert to fraction form
   1,230,611.72/1,843,445 = 613,253.48/x
3. Step 3: Cross multiply
   1,230,611.72x = 1,843,445 × 613,253.48
4. Step 4: Simplify right side
   1,230,611.72x = 1,130,499,061,438.60
5. Step 5: Solve for x
   x = 1,130,499,061,438.60/1,230,611.72
6. Step 6: Final answer
   x = 918,648.05