Finding the Fourth Proportional to 1,300.32, 1,950.88 and 478.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.32 : 1,950.88 = 478.56 : x
2. Step 2: Convert to fraction form
   1,300.32/1,950.88 = 478.56/x
3. Step 3: Cross multiply
   1,300.32x = 1,950.88 × 478.56
4. Step 4: Simplify right side
   1,300.32x = 933,613.13
5. Step 5: Solve for x
   x = 933,613.13/1,300.32
6. Step 6: Final answer
   x = 717.99