Finding the Fourth Proportional to 3,340.76, 5,010.81 and 875.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,340.76 : 5,010.81 = 875.52 : x
2. Step 2: Convert to fraction form
   3,340.76/5,010.81 = 875.52/x
3. Step 3: Cross multiply
   3,340.76x = 5,010.81 × 875.52
4. Step 4: Simplify right side
   3,340.76x = 4,387,064.37
5. Step 5: Solve for x
   x = 4,387,064.37/3,340.76
6. Step 6: Final answer
   x = 1,313.20