Finding the Fourth Proportional to 1,150,221.43, 1,587,423.69 and 691,484.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,221.43 : 1,587,423.69 = 691,484.51 : x
2. Step 2: Convert to fraction form
   1,150,221.43/1,587,423.69 = 691,484.51/x
3. Step 3: Cross multiply
   1,150,221.43x = 1,587,423.69 × 691,484.51
4. Step 4: Simplify right side
   1,150,221.43x = 1,097,678,896,410.60
5. Step 5: Solve for x
   x = 1,097,678,896,410.60/1,150,221.43
6. Step 6: Final answer
   x = 954,319.63