Finding the Fourth Proportional to 1,908.10, 2,632.41 and 1,210.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.10 : 2,632.41 = 1,210.18 : x
2. Step 2: Convert to fraction form
   1,908.10/2,632.41 = 1,210.18/x
3. Step 3: Cross multiply
   1,908.10x = 2,632.41 × 1,210.18
4. Step 4: Simplify right side
   1,908.10x = 3,185,689.93
5. Step 5: Solve for x
   x = 3,185,689.93/1,908.10
6. Step 6: Final answer
   x = 1,669.56