Finding the Fourth Proportional to 2,977.56, 4,466.24 and 1,128.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,977.56 : 4,466.24 = 1,128.12 : x
2. Step 2: Convert to fraction form
   2,977.56/4,466.24 = 1,128.12/x
3. Step 3: Cross multiply
   2,977.56x = 4,466.24 × 1,128.12
4. Step 4: Simplify right side
   2,977.56x = 5,038,454.67
5. Step 5: Solve for x
   x = 5,038,454.67/2,977.56
6. Step 6: Final answer
   x = 1,692.14