Finding the Fourth Proportional to 2,950.88, 4,428.05 and 1,307.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,950.88 : 4,428.05 = 1,307.61 : x
2. Step 2: Convert to fraction form
   2,950.88/4,428.05 = 1,307.61/x
3. Step 3: Cross multiply
   2,950.88x = 4,428.05 × 1,307.61
4. Step 4: Simplify right side
   2,950.88x = 5,790,155.92
5. Step 5: Solve for x
   x = 5,790,155.92/2,950.88
6. Step 6: Final answer
   x = 1,962.18