Finding the Fourth Proportional to 1,300.69, 1,950.43 and 478.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.69 : 1,950.43 = 478.96 : x
2. Step 2: Convert to fraction form
   1,300.69/1,950.43 = 478.96/x
3. Step 3: Cross multiply
   1,300.69x = 1,950.43 × 478.96
4. Step 4: Simplify right side
   1,300.69x = 934,177.95
5. Step 5: Solve for x
   x = 934,177.95/1,300.69
6. Step 6: Final answer
   x = 718.22