Finding the Fourth Proportional to 1,298.72, 1,947.72 and 568.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.72 : 1,947.72 = 568.12 : x
2. Step 2: Convert to fraction form
   1,298.72/1,947.72 = 568.12/x
3. Step 3: Cross multiply
   1,298.72x = 1,947.72 × 568.12
4. Step 4: Simplify right side
   1,298.72x = 1,106,538.69
5. Step 5: Solve for x
   x = 1,106,538.69/1,298.72
6. Step 6: Final answer
   x = 852.02