Finding the Fourth Proportional to 1,401.30, 1,934.15 and 928.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.30 : 1,934.15 = 928.97 : x
2. Step 2: Convert to fraction form
   1,401.30/1,934.15 = 928.97/x
3. Step 3: Cross multiply
   1,401.30x = 1,934.15 × 928.97
4. Step 4: Simplify right side
   1,401.30x = 1,796,760.26
5. Step 5: Solve for x
   x = 1,796,760.26/1,401.30
6. Step 6: Final answer
   x = 1,282.21