Finding the Fourth Proportional to 2,406.31, 3,603.69 and 1,307.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.31 : 3,603.69 = 1,307.95 : x
2. Step 2: Convert to fraction form
   2,406.31/3,603.69 = 1,307.95/x
3. Step 3: Cross multiply
   2,406.31x = 3,603.69 × 1,307.95
4. Step 4: Simplify right side
   2,406.31x = 4,713,437.33
5. Step 5: Solve for x
   x = 4,713,437.33/2,406.31
6. Step 6: Final answer
   x = 1,958.78