Finding the Fourth Proportional to 1,300.86, 1,950.38 and 479.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.86 : 1,950.38 = 479.02 : x
2. Step 2: Convert to fraction form
   1,300.86/1,950.38 = 479.02/x
3. Step 3: Cross multiply
   1,300.86x = 1,950.38 × 479.02
4. Step 4: Simplify right side
   1,300.86x = 934,274.73
5. Step 5: Solve for x
   x = 934,274.73/1,300.86
6. Step 6: Final answer
   x = 718.20