Finding the Fourth Proportional to 2,669.58, 4,004.91 and 938.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669.58 : 4,004.91 = 938.34 : x
2. Step 2: Convert to fraction form
   2,669.58/4,004.91 = 938.34/x
3. Step 3: Cross multiply
   2,669.58x = 4,004.91 × 938.34
4. Step 4: Simplify right side
   2,669.58x = 3,757,967.25
5. Step 5: Solve for x
   x = 3,757,967.25/2,669.58
6. Step 6: Final answer
   x = 1,407.70