Finding the Fourth Proportional to 2,771.01, 4,155.12 and 1,038.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,771.01 : 4,155.12 = 1,038.42 : x
2. Step 2: Convert to fraction form
   2,771.01/4,155.12 = 1,038.42/x
3. Step 3: Cross multiply
   2,771.01x = 4,155.12 × 1,038.42
4. Step 4: Simplify right side
   2,771.01x = 4,314,759.71
5. Step 5: Solve for x
   x = 4,314,759.71/2,771.01
6. Step 6: Final answer
   x = 1,557.11