Finding the Fourth Proportional to 2,158.72, 3,235.98 and 1,376.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.72 : 3,235.98 = 1,376.28 : x
2. Step 2: Convert to fraction form
   2,158.72/3,235.98 = 1,376.28/x
3. Step 3: Cross multiply
   2,158.72x = 3,235.98 × 1,376.28
4. Step 4: Simplify right side
   2,158.72x = 4,453,614.55
5. Step 5: Solve for x
   x = 4,453,614.55/2,158.72
6. Step 6: Final answer
   x = 2,063.08