Finding the Fourth Proportional to 1,397.55, 1,928.70 and 924.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.55 : 1,928.70 = 924.62 : x
2. Step 2: Convert to fraction form
   1,397.55/1,928.70 = 924.62/x
3. Step 3: Cross multiply
   1,397.55x = 1,928.70 × 924.62
4. Step 4: Simplify right side
   1,397.55x = 1,783,321.73
5. Step 5: Solve for x
   x = 1,783,321.73/1,397.55
6. Step 6: Final answer
   x = 1,276.04