Finding the Fourth Proportional to 2,491.46, 3,437.69 and 1,429.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491.46 : 3,437.69 = 1,429.55 : x
2. Step 2: Convert to fraction form
   2,491.46/3,437.69 = 1,429.55/x
3. Step 3: Cross multiply
   2,491.46x = 3,437.69 × 1,429.55
4. Step 4: Simplify right side
   2,491.46x = 4,914,346.34
5. Step 5: Solve for x
   x = 4,914,346.34/2,491.46
6. Step 6: Final answer
   x = 1,972.48