Finding the Fourth Proportional to 1,114.52, 1,539.95 and 1,075.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.52 : 1,539.95 = 1,075.10 : x
2. Step 2: Convert to fraction form
   1,114.52/1,539.95 = 1,075.10/x
3. Step 3: Cross multiply
   1,114.52x = 1,539.95 × 1,075.10
4. Step 4: Simplify right side
   1,114.52x = 1,655,587.17
5. Step 5: Solve for x
   x = 1,655,587.17/1,114.52
6. Step 6: Final answer
   x = 1,485.48