Finding the Fourth Proportional to 1,492.38, 2,238.00 and 711.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.38 : 2,238.00 = 711.79 : x
2. Step 2: Convert to fraction form
   1,492.38/2,238.00 = 711.79/x
3. Step 3: Cross multiply
   1,492.38x = 2,238.00 × 711.79
4. Step 4: Simplify right side
   1,492.38x = 1,592,977.76
5. Step 5: Solve for x
   x = 1,592,977.76/1,492.38
6. Step 6: Final answer
   x = 1,067.41