Finding the Fourth Proportional to 1,568.72, 2,352.12 and 836.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,568.72 : 2,352.12 = 836.48 : x
2. Step 2: Convert to fraction form
   1,568.72/2,352.12 = 836.48/x
3. Step 3: Cross multiply
   1,568.72x = 2,352.12 × 836.48
4. Step 4: Simplify right side
   1,568.72x = 1,967,501.34
5. Step 5: Solve for x
   x = 1,967,501.34/1,568.72
6. Step 6: Final answer
   x = 1,254.21