Finding the Fourth Proportional to 3,603.63, 4,973.15 and 2,031.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,603.63 : 4,973.15 = 2,031.69 : x
2. Step 2: Convert to fraction form
   3,603.63/4,973.15 = 2,031.69/x
3. Step 3: Cross multiply
   3,603.63x = 4,973.15 × 2,031.69
4. Step 4: Simplify right side
   3,603.63x = 10,103,904.20
5. Step 5: Solve for x
   x = 10,103,904.20/3,603.63
6. Step 6: Final answer
   x = 2,803.81