Finding the Fourth Proportional to 2,288.05, 3,430.82 and 1,118.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.05 : 3,430.82 = 1,118.07 : x
2. Step 2: Convert to fraction form
   2,288.05/3,430.82 = 1,118.07/x
3. Step 3: Cross multiply
   2,288.05x = 3,430.82 × 1,118.07
4. Step 4: Simplify right side
   2,288.05x = 3,835,899.71
5. Step 5: Solve for x
   x = 3,835,899.71/2,288.05
6. Step 6: Final answer
   x = 1,676.49