Finding the Fourth Proportional to 1,013,888.96, 1,399,164.72 and 555,003.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013,888.96 : 1,399,164.72 = 555,003.68 : x
2. Step 2: Convert to fraction form
   1,013,888.96/1,399,164.72 = 555,003.68/x
3. Step 3: Cross multiply
   1,013,888.96x = 1,399,164.72 × 555,003.68
4. Step 4: Simplify right side
   1,013,888.96x = 776,541,568,526.17
5. Step 5: Solve for x
   x = 776,541,568,526.17/1,013,888.96
6. Step 6: Final answer
   x = 765,903.96