Finding the Fourth Proportional to 1,561.52, 2,339.58 and 1,013.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.52 : 2,339.58 = 1,013.06 : x
2. Step 2: Convert to fraction form
   1,561.52/2,339.58 = 1,013.06/x
3. Step 3: Cross multiply
   1,561.52x = 2,339.58 × 1,013.06
4. Step 4: Simplify right side
   1,561.52x = 2,370,134.91
5. Step 5: Solve for x
   x = 2,370,134.91/1,561.52
6. Step 6: Final answer
   x = 1,517.84