Finding the Fourth Proportional to 1,446.15, 2,168.71 and 521.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.15 : 2,168.71 = 521.46 : x
2. Step 2: Convert to fraction form
   1,446.15/2,168.71 = 521.46/x
3. Step 3: Cross multiply
   1,446.15x = 2,168.71 × 521.46
4. Step 4: Simplify right side
   1,446.15x = 1,130,895.52
5. Step 5: Solve for x
   x = 1,130,895.52/1,446.15
6. Step 6: Final answer
   x = 782.00