Finding the Fourth Proportional to 1,667.16, 2,300.28 and 1,136.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.16 : 2,300.28 = 1,136.40 : x
2. Step 2: Convert to fraction form
   1,667.16/2,300.28 = 1,136.40/x
3. Step 3: Cross multiply
   1,667.16x = 2,300.28 × 1,136.40
4. Step 4: Simplify right side
   1,667.16x = 2,614,038.19
5. Step 5: Solve for x
   x = 2,614,038.19/1,667.16
6. Step 6: Final answer
   x = 1,567.96