Finding the Fourth Proportional to 1,360.71, 1,877.61 and 763.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.71 : 1,877.61 = 763.23 : x
2. Step 2: Convert to fraction form
   1,360.71/1,877.61 = 763.23/x
3. Step 3: Cross multiply
   1,360.71x = 1,877.61 × 763.23
4. Step 4: Simplify right side
   1,360.71x = 1,433,048.28
5. Step 5: Solve for x
   x = 1,433,048.28/1,360.71
6. Step 6: Final answer
   x = 1,053.16