Finding the Fourth Proportional to 1,300.43, 1,950.64 and 478.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.43 : 1,950.64 = 478.73 : x
2. Step 2: Convert to fraction form
   1,300.43/1,950.64 = 478.73/x
3. Step 3: Cross multiply
   1,300.43x = 1,950.64 × 478.73
4. Step 4: Simplify right side
   1,300.43x = 933,818.94
5. Step 5: Solve for x
   x = 933,818.94/1,300.43
6. Step 6: Final answer
   x = 718.09