Finding the Fourth Proportional to 2,654.08, 3,978.72 and 1,114.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.08 : 3,978.72 = 1,114.24 : x
2. Step 2: Convert to fraction form
   2,654.08/3,978.72 = 1,114.24/x
3. Step 3: Cross multiply
   2,654.08x = 3,978.72 × 1,114.24
4. Step 4: Simplify right side
   2,654.08x = 4,433,248.97
5. Step 5: Solve for x
   x = 4,433,248.97/2,654.08
6. Step 6: Final answer
   x = 1,670.35