Finding the Fourth Proportional to 2,600.39, 3,588.54 and 1,421.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,600.39 : 3,588.54 = 1,421.46 : x
2. Step 2: Convert to fraction form
   2,600.39/3,588.54 = 1,421.46/x
3. Step 3: Cross multiply
   2,600.39x = 3,588.54 × 1,421.46
4. Step 4: Simplify right side
   2,600.39x = 5,100,941.02
5. Step 5: Solve for x
   x = 5,100,941.02/2,600.39
6. Step 6: Final answer
   x = 1,961.61