Finding the Fourth Proportional to 2,007.77, 3,012.80 and 1,083.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.77 : 3,012.80 = 1,083.29 : x
2. Step 2: Convert to fraction form
   2,007.77/3,012.80 = 1,083.29/x
3. Step 3: Cross multiply
   2,007.77x = 3,012.80 × 1,083.29
4. Step 4: Simplify right side
   2,007.77x = 3,263,715.63
5. Step 5: Solve for x
   x = 3,263,715.63/2,007.77
6. Step 6: Final answer
   x = 1,625.55