Finding the Fourth Proportional to 1,108.16, 1,529.18 and 610.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108.16 : 1,529.18 = 610.82 : x
2. Step 2: Convert to fraction form
   1,108.16/1,529.18 = 610.82/x
3. Step 3: Cross multiply
   1,108.16x = 1,529.18 × 610.82
4. Step 4: Simplify right side
   1,108.16x = 934,053.73
5. Step 5: Solve for x
   x = 934,053.73/1,108.16
6. Step 6: Final answer
   x = 842.89