Finding the Fourth Proportional to 2,611.84, 3,919.29 and 969.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.84 : 3,919.29 = 969.53 : x
2. Step 2: Convert to fraction form
   2,611.84/3,919.29 = 969.53/x
3. Step 3: Cross multiply
   2,611.84x = 3,919.29 × 969.53
4. Step 4: Simplify right side
   2,611.84x = 3,799,849.64
5. Step 5: Solve for x
   x = 3,799,849.64/2,611.84
6. Step 6: Final answer
   x = 1,454.86