Finding the Fourth Proportional to 2,670.43, 4,005.69 and 1,110.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,670.43 : 4,005.69 = 1,110.42 : x
2. Step 2: Convert to fraction form
   2,670.43/4,005.69 = 1,110.42/x
3. Step 3: Cross multiply
   2,670.43x = 4,005.69 × 1,110.42
4. Step 4: Simplify right side
   2,670.43x = 4,447,998.29
5. Step 5: Solve for x
   x = 4,447,998.29/2,670.43
6. Step 6: Final answer
   x = 1,665.65