Finding the Fourth Proportional to 1,665.82, 2,298.06 and 1,105.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.82 : 2,298.06 = 1,105.48 : x
2. Step 2: Convert to fraction form
   1,665.82/2,298.06 = 1,105.48/x
3. Step 3: Cross multiply
   1,665.82x = 2,298.06 × 1,105.48
4. Step 4: Simplify right side
   1,665.82x = 2,540,459.37
5. Step 5: Solve for x
   x = 2,540,459.37/1,665.82
6. Step 6: Final answer
   x = 1,525.05