Finding the Fourth Proportional to 1,238.08, 1,707.27 and 1,061.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238.08 : 1,707.27 = 1,061.65 : x
2. Step 2: Convert to fraction form
   1,238.08/1,707.27 = 1,061.65/x
3. Step 3: Cross multiply
   1,238.08x = 1,707.27 × 1,061.65
4. Step 4: Simplify right side
   1,238.08x = 1,812,523.20
5. Step 5: Solve for x
   x = 1,812,523.20/1,238.08
6. Step 6: Final answer
   x = 1,463.98