Finding the Fourth Proportional to 2,066.63, 2,852.15 and 1,280.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.63 : 2,852.15 = 1,280.93 : x
2. Step 2: Convert to fraction form
   2,066.63/2,852.15 = 1,280.93/x
3. Step 3: Cross multiply
   2,066.63x = 2,852.15 × 1,280.93
4. Step 4: Simplify right side
   2,066.63x = 3,653,383.83
5. Step 5: Solve for x
   x = 3,653,383.83/2,066.63
6. Step 6: Final answer
   x = 1,767.80