Finding the Fourth Proportional to 1,109.56, 1,665.38 and 562.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.56 : 1,665.38 = 562.13 : x
2. Step 2: Convert to fraction form
   1,109.56/1,665.38 = 562.13/x
3. Step 3: Cross multiply
   1,109.56x = 1,665.38 × 562.13
4. Step 4: Simplify right side
   1,109.56x = 936,160.06
5. Step 5: Solve for x
   x = 936,160.06/1,109.56
6. Step 6: Final answer
   x = 843.72