Finding the Fourth Proportional to 1,338.04, 1,847.34 and 866.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.04 : 1,847.34 = 866.15 : x
2. Step 2: Convert to fraction form
   1,338.04/1,847.34 = 866.15/x
3. Step 3: Cross multiply
   1,338.04x = 1,847.34 × 866.15
4. Step 4: Simplify right side
   1,338.04x = 1,600,073.54
5. Step 5: Solve for x
   x = 1,600,073.54/1,338.04
6. Step 6: Final answer
   x = 1,195.83