Finding the Fourth Proportional to 5,131.06, 7,697.40 and 1,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131.06 : 7,697.40 = 1,667.50 : x
2. Step 2: Convert to fraction form
   5,131.06/7,697.40 = 1,667.50/x
3. Step 3: Cross multiply
   5,131.06x = 7,697.40 × 1,667.50
4. Step 4: Simplify right side
   5,131.06x = 12,835,414.50
5. Step 5: Solve for x
   x = 12,835,414.50/5,131.06
6. Step 6: Final answer
   x = 2,501.51