Finding the Fourth Proportional to 2,065.90, 3,100.80 and 1,283.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.90 : 3,100.80 = 1,283.53 : x
2. Step 2: Convert to fraction form
   2,065.90/3,100.80 = 1,283.53/x
3. Step 3: Cross multiply
   2,065.90x = 3,100.80 × 1,283.53
4. Step 4: Simplify right side
   2,065.90x = 3,979,969.82
5. Step 5: Solve for x
   x = 3,979,969.82/2,065.90
6. Step 6: Final answer
   x = 1,926.51