Finding the Fourth Proportional to 1,300.71, 1,948.73 and 715.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.71 : 1,948.73 = 715.08 : x
2. Step 2: Convert to fraction form
   1,300.71/1,948.73 = 715.08/x
3. Step 3: Cross multiply
   1,300.71x = 1,948.73 × 715.08
4. Step 4: Simplify right side
   1,300.71x = 1,393,494.27
5. Step 5: Solve for x
   x = 1,393,494.27/1,300.71
6. Step 6: Final answer
   x = 1,071.33