Finding the Fourth Proportional to 1,654.80, 2,284.32 and 1,116.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,654.80 : 2,284.32 = 1,116.55 : x
2. Step 2: Convert to fraction form
   1,654.80/2,284.32 = 1,116.55/x
3. Step 3: Cross multiply
   1,654.80x = 2,284.32 × 1,116.55
4. Step 4: Simplify right side
   1,654.80x = 2,550,557.50
5. Step 5: Solve for x
   x = 2,550,557.50/1,654.80
6. Step 6: Final answer
   x = 1,541.31