Finding the Fourth Proportional to 1,360.59, 1,877.69 and 763.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.59 : 1,877.69 = 763.12 : x
2. Step 2: Convert to fraction form
   1,360.59/1,877.69 = 763.12/x
3. Step 3: Cross multiply
   1,360.59x = 1,877.69 × 763.12
4. Step 4: Simplify right side
   1,360.59x = 1,432,902.79
5. Step 5: Solve for x
   x = 1,432,902.79/1,360.59
6. Step 6: Final answer
   x = 1,053.15