Finding the Fourth Proportional to 1,116.48, 1,542.22 and 930.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.48 : 1,542.22 = 930.59 : x
2. Step 2: Convert to fraction form
   1,116.48/1,542.22 = 930.59/x
3. Step 3: Cross multiply
   1,116.48x = 1,542.22 × 930.59
4. Step 4: Simplify right side
   1,116.48x = 1,435,166.80
5. Step 5: Solve for x
   x = 1,435,166.80/1,116.48
6. Step 6: Final answer
   x = 1,285.44