Finding the Fourth Proportional to 3,452.01, 5,177.50 and 1,111.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,452.01 : 5,177.50 = 1,111.71 : x
2. Step 2: Convert to fraction form
   3,452.01/5,177.50 = 1,111.71/x
3. Step 3: Cross multiply
   3,452.01x = 5,177.50 × 1,111.71
4. Step 4: Simplify right side
   3,452.01x = 5,755,878.53
5. Step 5: Solve for x
   x = 5,755,878.53/3,452.01
6. Step 6: Final answer
   x = 1,667.40