Finding the Fourth Proportional to 1,603.83, 2,404.31 and 863.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,603.83 : 2,404.31 = 863.84 : x
2. Step 2: Convert to fraction form
   1,603.83/2,404.31 = 863.84/x
3. Step 3: Cross multiply
   1,603.83x = 2,404.31 × 863.84
4. Step 4: Simplify right side
   1,603.83x = 2,076,922.81
5. Step 5: Solve for x
   x = 2,076,922.81/1,603.83
6. Step 6: Final answer
   x = 1,294.98