Finding the Fourth Proportional to 1,152,411.32, 1,590,318.42 and 669,021.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,411.32 : 1,590,318.42 = 669,021.32 : x
2. Step 2: Convert to fraction form
   1,152,411.32/1,590,318.42 = 669,021.32/x
3. Step 3: Cross multiply
   1,152,411.32x = 1,590,318.42 × 669,021.32
4. Step 4: Simplify right side
   1,152,411.32x = 1,063,956,928,568.71
5. Step 5: Solve for x
   x = 1,063,956,928,568.71/1,152,411.32
6. Step 6: Final answer
   x = 923,244.08