Finding the Fourth Proportional to 1,397.03, 1,929.27 and 1,265.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.03 : 1,929.27 = 1,265.81 : x
2. Step 2: Convert to fraction form
   1,397.03/1,929.27 = 1,265.81/x
3. Step 3: Cross multiply
   1,397.03x = 1,929.27 × 1,265.81
4. Step 4: Simplify right side
   1,397.03x = 2,442,079.61
5. Step 5: Solve for x
   x = 2,442,079.61/1,397.03
6. Step 6: Final answer
   x = 1,748.06