Finding the Fourth Proportional to 1,105,405.99, 1,654,676.61 and 598,708.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,405.99 : 1,654,676.61 = 598,708.47 : x
2. Step 2: Convert to fraction form
   1,105,405.99/1,654,676.61 = 598,708.47/x
3. Step 3: Cross multiply
   1,105,405.99x = 1,654,676.61 × 598,708.47
4. Step 4: Simplify right side
   1,105,405.99x = 990,668,901,517.89
5. Step 5: Solve for x
   x = 990,668,901,517.89/1,105,405.99
6. Step 6: Final answer
   x = 896,203.67