Finding the Fourth Proportional to 2,491.95, 3,439.02 and 1,429.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491.95 : 3,439.02 = 1,429.89 : x
2. Step 2: Convert to fraction form
   2,491.95/3,439.02 = 1,429.89/x
3. Step 3: Cross multiply
   2,491.95x = 3,439.02 × 1,429.89
4. Step 4: Simplify right side
   2,491.95x = 4,917,420.31
5. Step 5: Solve for x
   x = 4,917,420.31/2,491.95
6. Step 6: Final answer
   x = 1,973.32