Finding the Fourth Proportional to 2,111, 3,165.57 and 1,624.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111 : 3,165.57 = 1,624.38 : x
2. Step 2: Convert to fraction form
   2,111/3,165.57 = 1,624.38/x
3. Step 3: Cross multiply
   2,111x = 3,165.57 × 1,624.38
4. Step 4: Simplify right side
   2,111x = 5,142,088.60
5. Step 5: Solve for x
   x = 5,142,088.60/2,111
6. Step 6: Final answer
   x = 2,435.85