Finding the Fourth Proportional to 2,511.81, 3,763.89 and 1,277.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,511.81 : 3,763.89 = 1,277.37 : x
2. Step 2: Convert to fraction form
   2,511.81/3,763.89 = 1,277.37/x
3. Step 3: Cross multiply
   2,511.81x = 3,763.89 × 1,277.37
4. Step 4: Simplify right side
   2,511.81x = 4,807,880.17
5. Step 5: Solve for x
   x = 4,807,880.17/2,511.81
6. Step 6: Final answer
   x = 1,914.11