Finding the Fourth Proportional to 3,667.18, 5,060.69 and 1,988.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.18 : 5,060.69 = 1,988.58 : x
2. Step 2: Convert to fraction form
   3,667.18/5,060.69 = 1,988.58/x
3. Step 3: Cross multiply
   3,667.18x = 5,060.69 × 1,988.58
4. Step 4: Simplify right side
   3,667.18x = 10,063,586.92
5. Step 5: Solve for x
   x = 10,063,586.92/3,667.18
6. Step 6: Final answer
   x = 2,744.23