Finding the Fourth Proportional to 2,308.50, 3,186.54 and 1,377

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.50 : 3,186.54 = 1,377 : x
2. Step 2: Convert to fraction form
   2,308.50/3,186.54 = 1,377/x
3. Step 3: Cross multiply
   2,308.50x = 3,186.54 × 1,377
4. Step 4: Simplify right side
   2,308.50x = 4,387,865.58
5. Step 5: Solve for x
   x = 4,387,865.58/2,308.50
6. Step 6: Final answer
   x = 1,900.74