Finding the Fourth Proportional to 2,061, 3,085.44 and 1,278.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061 : 3,085.44 = 1,278.63 : x
2. Step 2: Convert to fraction form
   2,061/3,085.44 = 1,278.63/x
3. Step 3: Cross multiply
   2,061x = 3,085.44 × 1,278.63
4. Step 4: Simplify right side
   2,061x = 3,945,136.15
5. Step 5: Solve for x
   x = 3,945,136.15/2,061
6. Step 6: Final answer
   x = 1,914.19