Finding the Fourth Proportional to 1,463.61, 2,019.10 and 842.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,463.61 : 2,019.10 = 842.25 : x
2. Step 2: Convert to fraction form
   1,463.61/2,019.10 = 842.25/x
3. Step 3: Cross multiply
   1,463.61x = 2,019.10 × 842.25
4. Step 4: Simplify right side
   1,463.61x = 1,700,586.98
5. Step 5: Solve for x
   x = 1,700,586.98/1,463.61
6. Step 6: Final answer
   x = 1,161.91