Finding the Fourth Proportional to 1,963.89, 2,710.20 and 1,079.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,963.89 : 2,710.20 = 1,079.69 : x
2. Step 2: Convert to fraction form
   1,963.89/2,710.20 = 1,079.69/x
3. Step 3: Cross multiply
   1,963.89x = 2,710.20 × 1,079.69
4. Step 4: Simplify right side
   1,963.89x = 2,926,162.29
5. Step 5: Solve for x
   x = 2,926,162.29/1,963.89
6. Step 6: Final answer
   x = 1,489.98