Finding the Fourth Proportional to 2,275.30, 3,412.52 and 1,042.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.30 : 3,412.52 = 1,042.74 : x
2. Step 2: Convert to fraction form
   2,275.30/3,412.52 = 1,042.74/x
3. Step 3: Cross multiply
   2,275.30x = 3,412.52 × 1,042.74
4. Step 4: Simplify right side
   2,275.30x = 3,558,371.10
5. Step 5: Solve for x
   x = 3,558,371.10/2,275.30
6. Step 6: Final answer
   x = 1,563.91