Finding the Fourth Proportional to 2,402.87, 3,603.59 and 1,291.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.87 : 3,603.59 = 1,291.61 : x
2. Step 2: Convert to fraction form
   2,402.87/3,603.59 = 1,291.61/x
3. Step 3: Cross multiply
   2,402.87x = 3,603.59 × 1,291.61
4. Step 4: Simplify right side
   2,402.87x = 4,654,408.40
5. Step 5: Solve for x
   x = 4,654,408.40/2,402.87
6. Step 6: Final answer
   x = 1,937.02