Finding the Fourth Proportional to 1,783.82, 2,461.28 and 1,120.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.82 : 2,461.28 = 1,120.43 : x
2. Step 2: Convert to fraction form
   1,783.82/2,461.28 = 1,120.43/x
3. Step 3: Cross multiply
   1,783.82x = 2,461.28 × 1,120.43
4. Step 4: Simplify right side
   1,783.82x = 2,757,686.35
5. Step 5: Solve for x
   x = 2,757,686.35/1,783.82
6. Step 6: Final answer
   x = 1,545.94