Finding the Fourth Proportional to 2,620.88, 3,616.88 and 1,425.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.88 : 3,616.88 = 1,425.93 : x
2. Step 2: Convert to fraction form
   2,620.88/3,616.88 = 1,425.93/x
3. Step 3: Cross multiply
   2,620.88x = 3,616.88 × 1,425.93
4. Step 4: Simplify right side
   2,620.88x = 5,157,432.46
5. Step 5: Solve for x
   x = 5,157,432.46/2,620.88
6. Step 6: Final answer
   x = 1,967.82