Finding the Fourth Proportional to 2,140.63, 2,951.54 and 1,667.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140.63 : 2,951.54 = 1,667.99 : x
2. Step 2: Convert to fraction form
   2,140.63/2,951.54 = 1,667.99/x
3. Step 3: Cross multiply
   2,140.63x = 2,951.54 × 1,667.99
4. Step 4: Simplify right side
   2,140.63x = 4,923,144.50
5. Step 5: Solve for x
   x = 4,923,144.50/2,140.63
6. Step 6: Final answer
   x = 2,299.86