Finding the Fourth Proportional to 2,521.27, 3,779.37 and 960.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.27 : 3,779.37 = 960.87 : x
2. Step 2: Convert to fraction form
   2,521.27/3,779.37 = 960.87/x
3. Step 3: Cross multiply
   2,521.27x = 3,779.37 × 960.87
4. Step 4: Simplify right side
   2,521.27x = 3,631,483.25
5. Step 5: Solve for x
   x = 3,631,483.25/2,521.27
6. Step 6: Final answer
   x = 1,440.34