Finding the Fourth Proportional to 2,870.71, 3,961.61 and 1,675.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.71 : 3,961.61 = 1,675.75 : x
2. Step 2: Convert to fraction form
   2,870.71/3,961.61 = 1,675.75/x
3. Step 3: Cross multiply
   2,870.71x = 3,961.61 × 1,675.75
4. Step 4: Simplify right side
   2,870.71x = 6,638,667.96
5. Step 5: Solve for x
   x = 6,638,667.96/2,870.71
6. Step 6: Final answer
   x = 2,312.55