Finding the Fourth Proportional to 2,521.09, 3,782.04 and 877.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.09 : 3,782.04 = 877.69 : x
2. Step 2: Convert to fraction form
   2,521.09/3,782.04 = 877.69/x
3. Step 3: Cross multiply
   2,521.09x = 3,782.04 × 877.69
4. Step 4: Simplify right side
   2,521.09x = 3,319,458.69
5. Step 5: Solve for x
   x = 3,319,458.69/2,521.09
6. Step 6: Final answer
   x = 1,316.68