Finding the Fourth Proportional to 2,402.78, 3,603.60 and 1,103.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.78 : 3,603.60 = 1,103.00 : x
2. Step 2: Convert to fraction form
   2,402.78/3,603.60 = 1,103.00/x
3. Step 3: Cross multiply
   2,402.78x = 3,603.60 × 1,103.00
4. Step 4: Simplify right side
   2,402.78x = 3,974,752.78
5. Step 5: Solve for x
   x = 3,974,752.78/2,402.78
6. Step 6: Final answer
   x = 1,654.23