Finding the Fourth Proportional to 2,267.18, 3,128.91 and 1,335.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.18 : 3,128.91 = 1,335.50 : x
2. Step 2: Convert to fraction form
   2,267.18/3,128.91 = 1,335.50/x
3. Step 3: Cross multiply
   2,267.18x = 3,128.91 × 1,335.50
4. Step 4: Simplify right side
   2,267.18x = 4,178,659.31
5. Step 5: Solve for x
   x = 4,178,659.31/2,267.18
6. Step 6: Final answer
   x = 1,843.11