Finding the Fourth Proportional to 1,047.52, 1,570.72 and 353.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.52 : 1,570.72 = 353.92 : x
2. Step 2: Convert to fraction form
   1,047.52/1,570.72 = 353.92/x
3. Step 3: Cross multiply
   1,047.52x = 1,570.72 × 353.92
4. Step 4: Simplify right side
   1,047.52x = 555,909.22
5. Step 5: Solve for x
   x = 555,909.22/1,047.52
6. Step 6: Final answer
   x = 530.69