Finding the Fourth Proportional to 2,162.76, 2,986.50 and 1,377

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.76 : 2,986.50 = 1,377 : x
2. Step 2: Convert to fraction form
   2,162.76/2,986.50 = 1,377/x
3. Step 3: Cross multiply
   2,162.76x = 2,986.50 × 1,377
4. Step 4: Simplify right side
   2,162.76x = 4,112,410.50
5. Step 5: Solve for x
   x = 4,112,410.50/2,162.76
6. Step 6: Final answer
   x = 1,901.46