Finding the Fourth Proportional to 2,611.96, 3,605.10 and 1,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.96 : 3,605.10 = 1,667.50 : x
2. Step 2: Convert to fraction form
   2,611.96/3,605.10 = 1,667.50/x
3. Step 3: Cross multiply
   2,611.96x = 3,605.10 × 1,667.50
4. Step 4: Simplify right side
   2,611.96x = 6,011,504.25
5. Step 5: Solve for x
   x = 6,011,504.25/2,611.96
6. Step 6: Final answer
   x = 2,301.53