Finding the Fourth Proportional to 2,139.32, 2,951.43 and 1,510.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.32 : 2,951.43 = 1,510.76 : x
2. Step 2: Convert to fraction form
   2,139.32/2,951.43 = 1,510.76/x
3. Step 3: Cross multiply
   2,139.32x = 2,951.43 × 1,510.76
4. Step 4: Simplify right side
   2,139.32x = 4,458,902.39
5. Step 5: Solve for x
   x = 4,458,902.39/2,139.32
6. Step 6: Final answer
   x = 2,084.26