Finding the Fourth Proportional to 3,667.47, 5,061.14 and 1,988.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.47 : 5,061.14 = 1,988.91 : x
2. Step 2: Convert to fraction form
   3,667.47/5,061.14 = 1,988.91/x
3. Step 3: Cross multiply
   3,667.47x = 5,061.14 × 1,988.91
4. Step 4: Simplify right side
   3,667.47x = 10,066,151.96
5. Step 5: Solve for x
   x = 10,066,151.96/3,667.47
6. Step 6: Final answer
   x = 2,744.71