Finding the Fourth Proportional to 1,948.41, 2,922.51 and 715.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.41 : 2,922.51 = 715.72 : x
2. Step 2: Convert to fraction form
   1,948.41/2,922.51 = 715.72/x
3. Step 3: Cross multiply
   1,948.41x = 2,922.51 × 715.72
4. Step 4: Simplify right side
   1,948.41x = 2,091,698.86
5. Step 5: Solve for x
   x = 2,091,698.86/1,948.41
6. Step 6: Final answer
   x = 1,073.54