Finding the Fourth Proportional to 1,150,568.01, 1,587,715.55 and 660,424.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,568.01 : 1,587,715.55 = 660,424.29 : x
2. Step 2: Convert to fraction form
   1,150,568.01/1,587,715.55 = 660,424.29/x
3. Step 3: Cross multiply
   1,150,568.01x = 1,587,715.55 × 660,424.29
4. Step 4: Simplify right side
   1,150,568.01x = 1,048,565,911,528.59
5. Step 5: Solve for x
   x = 1,048,565,911,528.59/1,150,568.01
6. Step 6: Final answer
   x = 911,346.31