Finding the Fourth Proportional to 3,437.34, 5,143.71 and 2,976.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,437.34 : 5,143.71 = 2,976.72 : x
2. Step 2: Convert to fraction form
   3,437.34/5,143.71 = 2,976.72/x
3. Step 3: Cross multiply
   3,437.34x = 5,143.71 × 2,976.72
4. Step 4: Simplify right side
   3,437.34x = 15,311,384.43
5. Step 5: Solve for x
   x = 15,311,384.43/3,437.34
6. Step 6: Final answer
   x = 4,454.43