Finding the Fourth Proportional to 1,179.83, 1,627.37 and 899.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,179.83 : 1,627.37 = 899.42 : x
2. Step 2: Convert to fraction form
   1,179.83/1,627.37 = 899.42/x
3. Step 3: Cross multiply
   1,179.83x = 1,627.37 × 899.42
4. Step 4: Simplify right side
   1,179.83x = 1,463,683.24
5. Step 5: Solve for x
   x = 1,463,683.24/1,179.83
6. Step 6: Final answer
   x = 1,240.59