Finding the Fourth Proportional to 1,331.91, 1,838.01 and 742.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,331.91 : 1,838.01 = 742.47 : x
2. Step 2: Convert to fraction form
   1,331.91/1,838.01 = 742.47/x
3. Step 3: Cross multiply
   1,331.91x = 1,838.01 × 742.47
4. Step 4: Simplify right side
   1,331.91x = 1,364,667.28
5. Step 5: Solve for x
   x = 1,364,667.28/1,331.91
6. Step 6: Final answer
   x = 1,024.59