Finding the Fourth Proportional to 2,152.02, 2,963.92 and 1,987.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.02 : 2,963.92 = 1,987.99 : x
2. Step 2: Convert to fraction form
   2,152.02/2,963.92 = 1,987.99/x
3. Step 3: Cross multiply
   2,152.02x = 2,963.92 × 1,987.99
4. Step 4: Simplify right side
   2,152.02x = 5,892,245.75
5. Step 5: Solve for x
   x = 5,892,245.75/2,152.02
6. Step 6: Final answer
   x = 2,738.01