Finding the Fourth Proportional to 2,386.56, 3,570.28 and 1,976.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.56 : 3,570.28 = 1,976.50 : x
2. Step 2: Convert to fraction form
   2,386.56/3,570.28 = 1,976.50/x
3. Step 3: Cross multiply
   2,386.56x = 3,570.28 × 1,976.50
4. Step 4: Simplify right side
   2,386.56x = 7,056,657.94
5. Step 5: Solve for x
   x = 7,056,657.94/2,386.56
6. Step 6: Final answer
   x = 2,956.83