Finding the Fourth Proportional to 2,499.83, 3,748.28 and 855.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.83 : 3,748.28 = 855.93 : x
2. Step 2: Convert to fraction form
   2,499.83/3,748.28 = 855.93/x
3. Step 3: Cross multiply
   2,499.83x = 3,748.28 × 855.93
4. Step 4: Simplify right side
   2,499.83x = 3,208,265.30
5. Step 5: Solve for x
   x = 3,208,265.30/2,499.83
6. Step 6: Final answer
   x = 1,283.40