Finding the Fourth Proportional to 1,155,105.16, 1,593,405.16 and 671,616.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,105.16 : 1,593,405.16 = 671,616.88 : x
2. Step 2: Convert to fraction form
   1,155,105.16/1,593,405.16 = 671,616.88/x
3. Step 3: Cross multiply
   1,155,105.16x = 1,593,405.16 × 671,616.88
4. Step 4: Simplify right side
   1,155,105.16x = 1,070,157,802,135.10
5. Step 5: Solve for x
   x = 1,070,157,802,135.10/1,155,105.16
6. Step 6: Final answer
   x = 926,459.20