Finding the Fourth Proportional to 2,976.67, 4,107.04 and 1,858.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.67 : 4,107.04 = 1,858.15 : x
2. Step 2: Convert to fraction form
   2,976.67/4,107.04 = 1,858.15/x
3. Step 3: Cross multiply
   2,976.67x = 4,107.04 × 1,858.15
4. Step 4: Simplify right side
   2,976.67x = 7,631,496.38
5. Step 5: Solve for x
   x = 7,631,496.38/2,976.67
6. Step 6: Final answer
   x = 2,563.77