Finding the Fourth Proportional to 1,110.69, 1,662.48 and 700.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,110.69 : 1,662.48 = 700.20 : x
2. Step 2: Convert to fraction form
   1,110.69/1,662.48 = 700.20/x
3. Step 3: Cross multiply
   1,110.69x = 1,662.48 × 700.20
4. Step 4: Simplify right side
   1,110.69x = 1,164,068.50
5. Step 5: Solve for x
   x = 1,164,068.50/1,110.69
6. Step 6: Final answer
   x = 1,048.06