Finding the Fourth Proportional to 2,514.40, 3,770.25 and 870.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,514.40 : 3,770.25 = 870.46 : x
2. Step 2: Convert to fraction form
   2,514.40/3,770.25 = 870.46/x
3. Step 3: Cross multiply
   2,514.40x = 3,770.25 × 870.46
4. Step 4: Simplify right side
   2,514.40x = 3,281,851.82
5. Step 5: Solve for x
   x = 3,281,851.82/2,514.40
6. Step 6: Final answer
   x = 1,305.22