Finding the Fourth Proportional to 2,403.71, 3,605.54 and 1,307.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,403.71 : 3,605.54 = 1,307.82 : x
2. Step 2: Convert to fraction form
   2,403.71/3,605.54 = 1,307.82/x
3. Step 3: Cross multiply
   2,403.71x = 3,605.54 × 1,307.82
4. Step 4: Simplify right side
   2,403.71x = 4,715,390.78
5. Step 5: Solve for x
   x = 4,715,390.78/2,403.71
6. Step 6: Final answer
   x = 1,961.72