Finding the Fourth Proportional to 1,300.28, 1,950.48 and 722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.28 : 1,950.48 = 722.72 : x
2. Step 2: Convert to fraction form
   1,300.28/1,950.48 = 722.72/x
3. Step 3: Cross multiply
   1,300.28x = 1,950.48 × 722.72
4. Step 4: Simplify right side
   1,300.28x = 1,409,650.91
5. Step 5: Solve for x
   x = 1,409,650.91/1,300.28
6. Step 6: Final answer
   x = 1,084.11