Finding the Fourth Proportional to 1,152,516.34, 1,590,680.74 and 687,400.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,516.34 : 1,590,680.74 = 687,400.04 : x
2. Step 2: Convert to fraction form
   1,152,516.34/1,590,680.74 = 687,400.04/x
3. Step 3: Cross multiply
   1,152,516.34x = 1,590,680.74 × 687,400.04
4. Step 4: Simplify right side
   1,152,516.34x = 1,093,434,007,850.31
5. Step 5: Solve for x
   x = 1,093,434,007,850.31/1,152,516.34
6. Step 6: Final answer
   x = 948,736.23