Finding the Fourth Proportional to 3,603.86, 4,973.30 and 2,111.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,603.86 : 4,973.30 = 2,111.46 : x
2. Step 2: Convert to fraction form
   3,603.86/4,973.30 = 2,111.46/x
3. Step 3: Cross multiply
   3,603.86x = 4,973.30 × 2,111.46
4. Step 4: Simplify right side
   3,603.86x = 10,500,924.02
5. Step 5: Solve for x
   x = 10,500,924.02/3,603.86
6. Step 6: Final answer
   x = 2,913.80