Finding the Fourth Proportional to 2,651.35, 3,977.01 and 1,111.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,651.35 : 3,977.01 = 1,111.27 : x
2. Step 2: Convert to fraction form
   2,651.35/3,977.01 = 1,111.27/x
3. Step 3: Cross multiply
   2,651.35x = 3,977.01 × 1,111.27
4. Step 4: Simplify right side
   2,651.35x = 4,419,526.35
5. Step 5: Solve for x
   x = 4,419,526.35/2,651.35
6. Step 6: Final answer
   x = 1,666.90