Finding the Fourth Proportional to 2,516.45, 3,472.74 and 1,397.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.45 : 3,472.74 = 1,397.46 : x
2. Step 2: Convert to fraction form
   2,516.45/3,472.74 = 1,397.46/x
3. Step 3: Cross multiply
   2,516.45x = 3,472.74 × 1,397.46
4. Step 4: Simplify right side
   2,516.45x = 4,852,990.89
5. Step 5: Solve for x
   x = 4,852,990.89/2,516.45
6. Step 6: Final answer
   x = 1,928.51