Finding the Fourth Proportional to 2,669.99, 4,003.25 and 1,111.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669.99 : 4,003.25 = 1,111.06 : x
2. Step 2: Convert to fraction form
   2,669.99/4,003.25 = 1,111.06/x
3. Step 3: Cross multiply
   2,669.99x = 4,003.25 × 1,111.06
4. Step 4: Simplify right side
   2,669.99x = 4,447,843.71
5. Step 5: Solve for x
   x = 4,447,843.71/2,669.99
6. Step 6: Final answer
   x = 1,665.87