Finding the Fourth Proportional to 1,603.81, 2,209.82 and 1,078.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,603.81 : 2,209.82 = 1,078.93 : x
2. Step 2: Convert to fraction form
   1,603.81/2,209.82 = 1,078.93/x
3. Step 3: Cross multiply
   1,603.81x = 2,209.82 × 1,078.93
4. Step 4: Simplify right side
   1,603.81x = 2,384,241.09
5. Step 5: Solve for x
   x = 2,384,241.09/1,603.81
6. Step 6: Final answer
   x = 1,486.61