Finding the Fourth Proportional to 2,600.03, 3,587.94 and 1,421.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,600.03 : 3,587.94 = 1,421.12 : x
2. Step 2: Convert to fraction form
   2,600.03/3,587.94 = 1,421.12/x
3. Step 3: Cross multiply
   2,600.03x = 3,587.94 × 1,421.12
4. Step 4: Simplify right side
   2,600.03x = 5,098,893.29
5. Step 5: Solve for x
   x = 5,098,893.29/2,600.03
6. Step 6: Final answer
   x = 1,961.09