Finding the Fourth Proportional to 2,654.61, 3,980.37 and 1,011.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.61 : 3,980.37 = 1,011.27 : x
2. Step 2: Convert to fraction form
   2,654.61/3,980.37 = 1,011.27/x
3. Step 3: Cross multiply
   2,654.61x = 3,980.37 × 1,011.27
4. Step 4: Simplify right side
   2,654.61x = 4,025,228.77
5. Step 5: Solve for x
   x = 4,025,228.77/2,654.61
6. Step 6: Final answer
   x = 1,516.32