Finding the Fourth Proportional to 2,275.77, 3,411.05 and 1,043.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.77 : 3,411.05 = 1,043.31 : x
2. Step 2: Convert to fraction form
   2,275.77/3,411.05 = 1,043.31/x
3. Step 3: Cross multiply
   2,275.77x = 3,411.05 × 1,043.31
4. Step 4: Simplify right side
   2,275.77x = 3,558,790.15
5. Step 5: Solve for x
   x = 3,558,790.15/2,275.77
6. Step 6: Final answer
   x = 1,563.77