Finding the Fourth Proportional to 1,114.14, 1,539.43 and 1,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.14 : 1,539.43 = 1,074.72 : x
2. Step 2: Convert to fraction form
   1,114.14/1,539.43 = 1,074.72/x
3. Step 3: Cross multiply
   1,114.14x = 1,539.43 × 1,074.72
4. Step 4: Simplify right side
   1,114.14x = 1,654,453.52
5. Step 5: Solve for x
   x = 1,654,453.52/1,114.14
6. Step 6: Final answer
   x = 1,484.96