Finding the Fourth Proportional to 2,669.31, 4,003.98 and 1,369.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669.31 : 4,003.98 = 1,369.89 : x
2. Step 2: Convert to fraction form
   2,669.31/4,003.98 = 1,369.89/x
3. Step 3: Cross multiply
   2,669.31x = 4,003.98 × 1,369.89
4. Step 4: Simplify right side
   2,669.31x = 5,485,012.16
5. Step 5: Solve for x
   x = 5,485,012.16/2,669.31
6. Step 6: Final answer
   x = 2,054.84