Finding the Fourth Proportional to 1,263.12, 1,892.48 and 568.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,263.12 : 1,892.48 = 568.72 : x
2. Step 2: Convert to fraction form
   1,263.12/1,892.48 = 568.72/x
3. Step 3: Cross multiply
   1,263.12x = 1,892.48 × 568.72
4. Step 4: Simplify right side
   1,263.12x = 1,076,291.23
5. Step 5: Solve for x
   x = 1,076,291.23/1,263.12
6. Step 6: Final answer
   x = 852.09