Finding the Fourth Proportional to 1,365.42, 1,884.12 and 1,086.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.42 : 1,884.12 = 1,086.36 : x
2. Step 2: Convert to fraction form
   1,365.42/1,884.12 = 1,086.36/x
3. Step 3: Cross multiply
   1,365.42x = 1,884.12 × 1,086.36
4. Step 4: Simplify right side
   1,365.42x = 2,046,832.60
5. Step 5: Solve for x
   x = 2,046,832.60/1,365.42
6. Step 6: Final answer
   x = 1,499.05