Finding the Fourth Proportional to 1,842.02, 2,763.27 and 687.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,842.02 : 2,763.27 = 687.62 : x
2. Step 2: Convert to fraction form
   1,842.02/2,763.27 = 687.62/x
3. Step 3: Cross multiply
   1,842.02x = 2,763.27 × 687.62
4. Step 4: Simplify right side
   1,842.02x = 1,900,079.72
5. Step 5: Solve for x
   x = 1,900,079.72/1,842.02
6. Step 6: Final answer
   x = 1,031.52