Finding the Fourth Proportional to 3,152.78, 4,730.18 and 961.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,152.78 : 4,730.18 = 961.73 : x
2. Step 2: Convert to fraction form
   3,152.78/4,730.18 = 961.73/x
3. Step 3: Cross multiply
   3,152.78x = 4,730.18 × 961.73
4. Step 4: Simplify right side
   3,152.78x = 4,549,127.55
5. Step 5: Solve for x
   x = 4,549,127.55/3,152.78
6. Step 6: Final answer
   x = 1,442.90