Finding the Fourth Proportional to 1,101,900.58, 1,520,634.06 and 618,456.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101,900.58 : 1,520,634.06 = 618,456.03 : x
2. Step 2: Convert to fraction form
   1,101,900.58/1,520,634.06 = 618,456.03/x
3. Step 3: Cross multiply
   1,101,900.58x = 1,520,634.06 × 618,456.03
4. Step 4: Simplify right side
   1,101,900.58x = 940,445,298,128.00
5. Step 5: Solve for x
   x = 940,445,298,128.00/1,101,900.58
6. Step 6: Final answer
   x = 853,475.64