Finding the Fourth Proportional to 1,397.49, 1,926.16 and 954.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.49 : 1,926.16 = 954.62 : x
2. Step 2: Convert to fraction form
   1,397.49/1,926.16 = 954.62/x
3. Step 3: Cross multiply
   1,397.49x = 1,926.16 × 954.62
4. Step 4: Simplify right side
   1,397.49x = 1,838,753.29
5. Step 5: Solve for x
   x = 1,838,753.29/1,397.49
6. Step 6: Final answer
   x = 1,315.75