Finding the Fourth Proportional to 1,662.16, 2,488.98 and 1,112.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.16 : 2,488.98 = 1,112.68 : x
2. Step 2: Convert to fraction form
   1,662.16/2,488.98 = 1,112.68/x
3. Step 3: Cross multiply
   1,662.16x = 2,488.98 × 1,112.68
4. Step 4: Simplify right side
   1,662.16x = 2,769,438.27
5. Step 5: Solve for x
   x = 2,769,438.27/1,662.16
6. Step 6: Final answer
   x = 1,666.17