Finding the Fourth Proportional to 3,340.69, 5,010.61 and 875.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,340.69 : 5,010.61 = 875.71 : x
2. Step 2: Convert to fraction form
   3,340.69/5,010.61 = 875.71/x
3. Step 3: Cross multiply
   3,340.69x = 5,010.61 × 875.71
4. Step 4: Simplify right side
   3,340.69x = 4,387,847.00
5. Step 5: Solve for x
   x = 4,387,847.00/3,340.69
6. Step 6: Final answer
   x = 1,313.45