Finding the Fourth Proportional to 2,606.90, 3,910.37 and 875.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.90 : 3,910.37 = 875.52 : x
2. Step 2: Convert to fraction form
   2,606.90/3,910.37 = 875.52/x
3. Step 3: Cross multiply
   2,606.90x = 3,910.37 × 875.52
4. Step 4: Simplify right side
   2,606.90x = 3,423,602.76
5. Step 5: Solve for x
   x = 3,423,602.76/2,606.90
6. Step 6: Final answer
   x = 1,313.29