Finding the Fourth Proportional to 1,929.29, 2,658.78 and 1,397.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929.29 : 2,658.78 = 1,397.27 : x
2. Step 2: Convert to fraction form
   1,929.29/2,658.78 = 1,397.27/x
3. Step 3: Cross multiply
   1,929.29x = 2,658.78 × 1,397.27
4. Step 4: Simplify right side
   1,929.29x = 3,715,040.18
5. Step 5: Solve for x
   x = 3,715,040.18/1,929.29
6. Step 6: Final answer
   x = 1,925.60