Finding the Fourth Proportional to 2,496.71, 3,742.15 and 1,878.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,496.71 : 3,742.15 = 1,878.43 : x
2. Step 2: Convert to fraction form
   2,496.71/3,742.15 = 1,878.43/x
3. Step 3: Cross multiply
   2,496.71x = 3,742.15 × 1,878.43
4. Step 4: Simplify right side
   2,496.71x = 7,029,366.82
5. Step 5: Solve for x
   x = 7,029,366.82/2,496.71
6. Step 6: Final answer
   x = 2,815.45