Finding the Fourth Proportional to 5,499.78, 8,250.48 and 1,603.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,499.78 : 8,250.48 = 1,603.68 : x
2. Step 2: Convert to fraction form
   5,499.78/8,250.48 = 1,603.68/x
3. Step 3: Cross multiply
   5,499.78x = 8,250.48 × 1,603.68
4. Step 4: Simplify right side
   5,499.78x = 13,231,129.77
5. Step 5: Solve for x
   x = 13,231,129.77/5,499.78
6. Step 6: Final answer
   x = 2,405.76