Finding the Fourth Proportional to 1,662.79, 2,492.24 and 1,069.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.79 : 2,492.24 = 1,069.05 : x
2. Step 2: Convert to fraction form
   1,662.79/2,492.24 = 1,069.05/x
3. Step 3: Cross multiply
   1,662.79x = 2,492.24 × 1,069.05
4. Step 4: Simplify right side
   1,662.79x = 2,664,323.83
5. Step 5: Solve for x
   x = 2,664,323.83/1,662.79
6. Step 6: Final answer
   x = 1,602.32