Finding the Fourth Proportional to 3,603.42, 4,972.47 and 2,031.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,603.42 : 4,972.47 = 2,031.18 : x
2. Step 2: Convert to fraction form
   3,603.42/4,972.47 = 2,031.18/x
3. Step 3: Cross multiply
   3,603.42x = 4,972.47 × 2,031.18
4. Step 4: Simplify right side
   3,603.42x = 10,099,981.61
5. Step 5: Solve for x
   x = 10,099,981.61/3,603.42
6. Step 6: Final answer
   x = 2,802.89