Finding the Fourth Proportional to 1,947.59, 2,919.65 and 714.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.59 : 2,919.65 = 714.71 : x
2. Step 2: Convert to fraction form
   1,947.59/2,919.65 = 714.71/x
3. Step 3: Cross multiply
   1,947.59x = 2,919.65 × 714.71
4. Step 4: Simplify right side
   1,947.59x = 2,086,706.78
5. Step 5: Solve for x
   x = 2,086,706.78/1,947.59
6. Step 6: Final answer
   x = 1,071.43