Finding the Fourth Proportional to 2,615.98, 3,925.51 and 972.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.98 : 3,925.51 = 972.49 : x
2. Step 2: Convert to fraction form
   2,615.98/3,925.51 = 972.49/x
3. Step 3: Cross multiply
   2,615.98x = 3,925.51 × 972.49
4. Step 4: Simplify right side
   2,615.98x = 3,817,494.73
5. Step 5: Solve for x
   x = 3,817,494.73/2,615.98
6. Step 6: Final answer
   x = 1,459.30