Finding the Fourth Proportional to 1,308.42, 1,804.01 and 865.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.42 : 1,804.01 = 865.62 : x
2. Step 2: Convert to fraction form
   1,308.42/1,804.01 = 865.62/x
3. Step 3: Cross multiply
   1,308.42x = 1,804.01 × 865.62
4. Step 4: Simplify right side
   1,308.42x = 1,561,582.81
5. Step 5: Solve for x
   x = 1,561,582.81/1,308.42
6. Step 6: Final answer
   x = 1,193.49