Finding the Fourth Proportional to 2,380.52, 3,570.82 and 649.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.52 : 3,570.82 = 649.15 : x
2. Step 2: Convert to fraction form
   2,380.52/3,570.82 = 649.15/x
3. Step 3: Cross multiply
   2,380.52x = 3,570.82 × 649.15
4. Step 4: Simplify right side
   2,380.52x = 2,317,987.25
5. Step 5: Solve for x
   x = 2,317,987.25/2,380.52
6. Step 6: Final answer
   x = 973.73