Finding the Fourth Proportional to 1,411.55, 2,105.84 and 1,375.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.55 : 2,105.84 = 1,375.31 : x
2. Step 2: Convert to fraction form
   1,411.55/2,105.84 = 1,375.31/x
3. Step 3: Cross multiply
   1,411.55x = 2,105.84 × 1,375.31
4. Step 4: Simplify right side
   1,411.55x = 2,896,165.40
5. Step 5: Solve for x
   x = 2,896,165.40/1,411.55
6. Step 6: Final answer
   x = 2,051.76