Finding the Fourth Proportional to 1,050.52, 1,446.50 and 930.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.52 : 1,446.50 = 930.78 : x
2. Step 2: Convert to fraction form
   1,050.52/1,446.50 = 930.78/x
3. Step 3: Cross multiply
   1,050.52x = 1,446.50 × 930.78
4. Step 4: Simplify right side
   1,050.52x = 1,346,373.27
5. Step 5: Solve for x
   x = 1,346,373.27/1,050.52
6. Step 6: Final answer
   x = 1,281.63