Finding the Fourth Proportional to 3,533.09, 4,874.72 and 2,116.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,533.09 : 4,874.72 = 2,116.40 : x
2. Step 2: Convert to fraction form
   3,533.09/4,874.72 = 2,116.40/x
3. Step 3: Cross multiply
   3,533.09x = 4,874.72 × 2,116.40
4. Step 4: Simplify right side
   3,533.09x = 10,316,822.45
5. Step 5: Solve for x
   x = 10,316,822.45/3,533.09
6. Step 6: Final answer
   x = 2,920.06