Finding the Fourth Proportional to 1,348.32, 1,859.76 and 1,127.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.32 : 1,859.76 = 1,127.28 : x
2. Step 2: Convert to fraction form
   1,348.32/1,859.76 = 1,127.28/x
3. Step 3: Cross multiply
   1,348.32x = 1,859.76 × 1,127.28
4. Step 4: Simplify right side
   1,348.32x = 2,096,470.25
5. Step 5: Solve for x
   x = 2,096,470.25/1,348.32
6. Step 6: Final answer
   x = 1,554.88