Finding the Fourth Proportional to 2,603.33, 3,905.90 and 1,142.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.33 : 3,905.90 = 1,142.59 : x
2. Step 2: Convert to fraction form
   2,603.33/3,905.90 = 1,142.59/x
3. Step 3: Cross multiply
   2,603.33x = 3,905.90 × 1,142.59
4. Step 4: Simplify right side
   2,603.33x = 4,462,842.28
5. Step 5: Solve for x
   x = 4,462,842.28/2,603.33
6. Step 6: Final answer
   x = 1,714.28