Finding the Fourth Proportional to 2,066.33, 3,091.72 and 1,230.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.33 : 3,091.72 = 1,230.31 : x
2. Step 2: Convert to fraction form
   2,066.33/3,091.72 = 1,230.31/x
3. Step 3: Cross multiply
   2,066.33x = 3,091.72 × 1,230.31
4. Step 4: Simplify right side
   2,066.33x = 3,803,774.03
5. Step 5: Solve for x
   x = 3,803,774.03/2,066.33
6. Step 6: Final answer
   x = 1,840.84