Finding the Fourth Proportional to 1,109.54, 1,665.72 and 700.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.54 : 1,665.72 = 700.39 : x
2. Step 2: Convert to fraction form
   1,109.54/1,665.72 = 700.39/x
3. Step 3: Cross multiply
   1,109.54x = 1,665.72 × 700.39
4. Step 4: Simplify right side
   1,109.54x = 1,166,645.30
5. Step 5: Solve for x
   x = 1,166,645.30/1,109.54
6. Step 6: Final answer
   x = 1,051.47