Finding the Fourth Proportional to 1,908.30, 2,633.58 and 1,162.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.30 : 2,633.58 = 1,162.11 : x
2. Step 2: Convert to fraction form
   1,908.30/2,633.58 = 1,162.11/x
3. Step 3: Cross multiply
   1,908.30x = 2,633.58 × 1,162.11
4. Step 4: Simplify right side
   1,908.30x = 3,060,509.65
5. Step 5: Solve for x
   x = 3,060,509.65/1,908.30
6. Step 6: Final answer
   x = 1,603.79