Finding the Fourth Proportional to 2,434.34, 3,649.85 and 874.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.34 : 3,649.85 = 874.31 : x
2. Step 2: Convert to fraction form
   2,434.34/3,649.85 = 874.31/x
3. Step 3: Cross multiply
   2,434.34x = 3,649.85 × 874.31
4. Step 4: Simplify right side
   2,434.34x = 3,191,100.35
5. Step 5: Solve for x
   x = 3,191,100.35/2,434.34
6. Step 6: Final answer
   x = 1,310.87