Finding the Fourth Proportional to 1,238.91, 1,709.64 and 741.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238.91 : 1,709.64 = 741.83 : x
2. Step 2: Convert to fraction form
   1,238.91/1,709.64 = 741.83/x
3. Step 3: Cross multiply
   1,238.91x = 1,709.64 × 741.83
4. Step 4: Simplify right side
   1,238.91x = 1,268,256.82
5. Step 5: Solve for x
   x = 1,268,256.82/1,238.91
6. Step 6: Final answer
   x = 1,023.69