Finding the Fourth Proportional to 2,521.63, 3,778.26 and 877.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.63 : 3,778.26 = 877.29 : x
2. Step 2: Convert to fraction form
   2,521.63/3,778.26 = 877.29/x
3. Step 3: Cross multiply
   2,521.63x = 3,778.26 × 877.29
4. Step 4: Simplify right side
   2,521.63x = 3,314,610.82
5. Step 5: Solve for x
   x = 3,314,610.82/2,521.63
6. Step 6: Final answer
   x = 1,314.47