Finding the Fourth Proportional to 2,498.28, 3,743.32 and 853.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.28 : 3,743.32 = 853.93 : x
2. Step 2: Convert to fraction form
   2,498.28/3,743.32 = 853.93/x
3. Step 3: Cross multiply
   2,498.28x = 3,743.32 × 853.93
4. Step 4: Simplify right side
   2,498.28x = 3,196,533.25
5. Step 5: Solve for x
   x = 3,196,533.25/2,498.28
6. Step 6: Final answer
   x = 1,279.49