Finding the Fourth Proportional to 3,762.35, 5,641.48 and 2,987.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,762.35 : 5,641.48 = 2,987.34 : x
2. Step 2: Convert to fraction form
   3,762.35/5,641.48 = 2,987.34/x
3. Step 3: Cross multiply
   3,762.35x = 5,641.48 × 2,987.34
4. Step 4: Simplify right side
   3,762.35x = 16,853,018.86
5. Step 5: Solve for x
   x = 16,853,018.86/3,762.35
6. Step 6: Final answer
   x = 4,479.39