Finding the Fourth Proportional to 1,570.52, 2,344.51 and 1,242.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.52 : 2,344.51 = 1,242.56 : x
2. Step 2: Convert to fraction form
   1,570.52/2,344.51 = 1,242.56/x
3. Step 3: Cross multiply
   1,570.52x = 2,344.51 × 1,242.56
4. Step 4: Simplify right side
   1,570.52x = 2,913,194.35
5. Step 5: Solve for x
   x = 2,913,194.35/1,570.52
6. Step 6: Final answer
   x = 1,854.92