Finding the Fourth Proportional to 1,605.02, 2,406.72 and 1,142.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605.02 : 2,406.72 = 1,142.52 : x
2. Step 2: Convert to fraction form
   1,605.02/2,406.72 = 1,142.52/x
3. Step 3: Cross multiply
   1,605.02x = 2,406.72 × 1,142.52
4. Step 4: Simplify right side
   1,605.02x = 2,749,725.73
5. Step 5: Solve for x
   x = 2,749,725.73/1,605.02
6. Step 6: Final answer
   x = 1,713.20