Finding the Fourth Proportional to 1,570.18, 2,166.10 and 940.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.18 : 2,166.10 = 940.41 : x
2. Step 2: Convert to fraction form
   1,570.18/2,166.10 = 940.41/x
3. Step 3: Cross multiply
   1,570.18x = 2,166.10 × 940.41
4. Step 4: Simplify right side
   1,570.18x = 2,037,015.15
5. Step 5: Solve for x
   x = 2,037,015.15/1,570.18
6. Step 6: Final answer
   x = 1,297.31