Finding the Fourth Proportional to 1,908.51, 2,633.58 and 1,200.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.51 : 2,633.58 = 1,200.12 : x
2. Step 2: Convert to fraction form
   1,908.51/2,633.58 = 1,200.12/x
3. Step 3: Cross multiply
   1,908.51x = 2,633.58 × 1,200.12
4. Step 4: Simplify right side
   1,908.51x = 3,160,612.03
5. Step 5: Solve for x
   x = 3,160,612.03/1,908.51
6. Step 6: Final answer
   x = 1,656.06