Finding the Fourth Proportional to 2,669.76, 4,005.72 and 938.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669.76 : 4,005.72 = 938.52 : x
2. Step 2: Convert to fraction form
   2,669.76/4,005.72 = 938.52/x
3. Step 3: Cross multiply
   2,669.76x = 4,005.72 × 938.52
4. Step 4: Simplify right side
   2,669.76x = 3,759,448.33
5. Step 5: Solve for x
   x = 3,759,448.33/2,669.76
6. Step 6: Final answer
   x = 1,408.16