Finding the Fourth Proportional to 2,401.52, 3,596.47 and 1,987.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.52 : 3,596.47 = 1,987.61 : x
2. Step 2: Convert to fraction form
   2,401.52/3,596.47 = 1,987.61/x
3. Step 3: Cross multiply
   2,401.52x = 3,596.47 × 1,987.61
4. Step 4: Simplify right side
   2,401.52x = 7,148,379.74
5. Step 5: Solve for x
   x = 7,148,379.74/2,401.52
6. Step 6: Final answer
   x = 2,976.61