Finding the Fourth Proportional to 2,197.91, 3,030.74 and 1,667.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,197.91 : 3,030.74 = 1,667.77 : x
2. Step 2: Convert to fraction form
   2,197.91/3,030.74 = 1,667.77/x
3. Step 3: Cross multiply
   2,197.91x = 3,030.74 × 1,667.77
4. Step 4: Simplify right side
   2,197.91x = 5,054,577.25
5. Step 5: Solve for x
   x = 5,054,577.25/2,197.91
6. Step 6: Final answer
   x = 2,299.72