Finding the Fourth Proportional to 2,730.71, 4,088.78 and 1,429.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,730.71 : 4,088.78 = 1,429.45 : x
2. Step 2: Convert to fraction form
   2,730.71/4,088.78 = 1,429.45/x
3. Step 3: Cross multiply
   2,730.71x = 4,088.78 × 1,429.45
4. Step 4: Simplify right side
   2,730.71x = 5,844,694.56
5. Step 5: Solve for x
   x = 5,844,694.56/2,730.71
6. Step 6: Final answer
   x = 2,140.36