Finding the Fourth Proportional to 2,270.86, 3,405.54 and 731.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.86 : 3,405.54 = 731.50 : x
2. Step 2: Convert to fraction form
   2,270.86/3,405.54 = 731.50/x
3. Step 3: Cross multiply
   2,270.86x = 3,405.54 × 731.50
4. Step 4: Simplify right side
   2,270.86x = 2,491,152.51
5. Step 5: Solve for x
   x = 2,491,152.51/2,270.86
6. Step 6: Final answer
   x = 1,097.01