Finding the Fourth Proportional to 2,718.01, 4,077.89 and 1,237.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,718.01 : 4,077.89 = 1,237.76 : x
2. Step 2: Convert to fraction form
   2,718.01/4,077.89 = 1,237.76/x
3. Step 3: Cross multiply
   2,718.01x = 4,077.89 × 1,237.76
4. Step 4: Simplify right side
   2,718.01x = 5,047,462.42
5. Step 5: Solve for x
   x = 5,047,462.42/2,718.01
6. Step 6: Final answer
   x = 1,857.05