Finding the Fourth Proportional to 2,521.82, 3,780.15 and 877.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.82 : 3,780.15 = 877.02 : x
2. Step 2: Convert to fraction form
   2,521.82/3,780.15 = 877.02/x
3. Step 3: Cross multiply
   2,521.82x = 3,780.15 × 877.02
4. Step 4: Simplify right side
   2,521.82x = 3,315,248.25
5. Step 5: Solve for x
   x = 3,315,248.25/2,521.82
6. Step 6: Final answer
   x = 1,314.63