Finding the Fourth Proportional to 2,810.16, 4,214.43 and 862.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810.16 : 4,214.43 = 862.52 : x
2. Step 2: Convert to fraction form
   2,810.16/4,214.43 = 862.52/x
3. Step 3: Cross multiply
   2,810.16x = 4,214.43 × 862.52
4. Step 4: Simplify right side
   2,810.16x = 3,635,009.09
5. Step 5: Solve for x
   x = 3,635,009.09/2,810.16
6. Step 6: Final answer
   x = 1,293.52