Finding the Fourth Proportional to 1,063.82, 1,468.17 and 621.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.82 : 1,468.17 = 621.69 : x
2. Step 2: Convert to fraction form
   1,063.82/1,468.17 = 621.69/x
3. Step 3: Cross multiply
   1,063.82x = 1,468.17 × 621.69
4. Step 4: Simplify right side
   1,063.82x = 912,746.61
5. Step 5: Solve for x
   x = 912,746.61/1,063.82
6. Step 6: Final answer
   x = 857.99