Finding the Fourth Proportional to 2,085.35, 2,876.87 and 1,376.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.35 : 2,876.87 = 1,376.28 : x
2. Step 2: Convert to fraction form
   2,085.35/2,876.87 = 1,376.28/x
3. Step 3: Cross multiply
   2,085.35x = 2,876.87 × 1,376.28
4. Step 4: Simplify right side
   2,085.35x = 3,959,371.76
5. Step 5: Solve for x
   x = 3,959,371.76/2,085.35
6. Step 6: Final answer
   x = 1,898.67