Finding the Fourth Proportional to 1,871.17, 2,807.25 and 1,667.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.17 : 2,807.25 = 1,667.14 : x
2. Step 2: Convert to fraction form
   1,871.17/2,807.25 = 1,667.14/x
3. Step 3: Cross multiply
   1,871.17x = 2,807.25 × 1,667.14
4. Step 4: Simplify right side
   1,871.17x = 4,680,078.77
5. Step 5: Solve for x
   x = 4,680,078.77/1,871.17
6. Step 6: Final answer
   x = 2,501.15