Finding the Fourth Proportional to 2,870.45, 3,962.87 and 1,927.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.45 : 3,962.87 = 1,927.92 : x
2. Step 2: Convert to fraction form
   2,870.45/3,962.87 = 1,927.92/x
3. Step 3: Cross multiply
   2,870.45x = 3,962.87 × 1,927.92
4. Step 4: Simplify right side
   2,870.45x = 7,640,096.33
5. Step 5: Solve for x
   x = 7,640,096.33/2,870.45
6. Step 6: Final answer
   x = 2,661.64