Finding the Fourth Proportional to 2,427.80, 3,641.72 and 696.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,427.80 : 3,641.72 = 696.48 : x
2. Step 2: Convert to fraction form
   2,427.80/3,641.72 = 696.48/x
3. Step 3: Cross multiply
   2,427.80x = 3,641.72 × 696.48
4. Step 4: Simplify right side
   2,427.80x = 2,536,385.15
5. Step 5: Solve for x
   x = 2,536,385.15/2,427.80
6. Step 6: Final answer
   x = 1,044.73