Finding the Fourth Proportional to 2,625.60, 3,934.96 and 1,309.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,625.60 : 3,934.96 = 1,309.29 : x
2. Step 2: Convert to fraction form
   2,625.60/3,934.96 = 1,309.29/x
3. Step 3: Cross multiply
   2,625.60x = 3,934.96 × 1,309.29
4. Step 4: Simplify right side
   2,625.60x = 5,152,003.78
5. Step 5: Solve for x
   x = 5,152,003.78/2,625.60
6. Step 6: Final answer
   x = 1,962.22