Finding the Fourth Proportional to 1,570.41, 2,352.78 and 876.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.41 : 2,352.78 = 876.24 : x
2. Step 2: Convert to fraction form
   1,570.41/2,352.78 = 876.24/x
3. Step 3: Cross multiply
   1,570.41x = 2,352.78 × 876.24
4. Step 4: Simplify right side
   1,570.41x = 2,061,599.95
5. Step 5: Solve for x
   x = 2,061,599.95/1,570.41
6. Step 6: Final answer
   x = 1,312.78