Finding the Fourth Proportional to 1,300.68, 1,951.47 and 570.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.68 : 1,951.47 = 570.78 : x
2. Step 2: Convert to fraction form
   1,300.68/1,951.47 = 570.78/x
3. Step 3: Cross multiply
   1,300.68x = 1,951.47 × 570.78
4. Step 4: Simplify right side
   1,300.68x = 1,113,860.05
5. Step 5: Solve for x
   x = 1,113,860.05/1,300.68
6. Step 6: Final answer
   x = 856.37