Finding the Fourth Proportional to 2,064.99, 2,851.83 and 1,587.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.99 : 2,851.83 = 1,587.90 : x
2. Step 2: Convert to fraction form
   2,064.99/2,851.83 = 1,587.90/x
3. Step 3: Cross multiply
   2,064.99x = 2,851.83 × 1,587.90
4. Step 4: Simplify right side
   2,064.99x = 4,528,420.86
5. Step 5: Solve for x
   x = 4,528,420.86/2,064.99
6. Step 6: Final answer
   x = 2,192.95