Finding the Fourth Proportional to 1,360.68, 1,877.63 and 771.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.68 : 1,877.63 = 771.27 : x
2. Step 2: Convert to fraction form
   1,360.68/1,877.63 = 771.27/x
3. Step 3: Cross multiply
   1,360.68x = 1,877.63 × 771.27
4. Step 4: Simplify right side
   1,360.68x = 1,448,155.83
5. Step 5: Solve for x
   x = 1,448,155.83/1,360.68
6. Step 6: Final answer
   x = 1,064.29