Finding the Fourth Proportional to 1,041.30, 1,560.59 and 492.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,041.30 : 1,560.59 = 492.75 : x
2. Step 2: Convert to fraction form
   1,041.30/1,560.59 = 492.75/x
3. Step 3: Cross multiply
   1,041.30x = 1,560.59 × 492.75
4. Step 4: Simplify right side
   1,041.30x = 768,978.26
5. Step 5: Solve for x
   x = 768,978.26/1,041.30
6. Step 6: Final answer
   x = 738.48