Finding the Fourth Proportional to 2,026.42, 2,797.07 and 1,187.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,026.42 : 2,797.07 = 1,187.30 : x
2. Step 2: Convert to fraction form
   2,026.42/2,797.07 = 1,187.30/x
3. Step 3: Cross multiply
   2,026.42x = 2,797.07 × 1,187.30
4. Step 4: Simplify right side
   2,026.42x = 3,320,962.27
5. Step 5: Solve for x
   x = 3,320,962.27/2,026.42
6. Step 6: Final answer
   x = 1,638.83