Finding the Fourth Proportional to 2,651.37, 3,978.36 and 1,876.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,651.37 : 3,978.36 = 1,876.35 : x
2. Step 2: Convert to fraction form
   2,651.37/3,978.36 = 1,876.35/x
3. Step 3: Cross multiply
   2,651.37x = 3,978.36 × 1,876.35
4. Step 4: Simplify right side
   2,651.37x = 7,464,795.79
5. Step 5: Solve for x
   x = 7,464,795.79/2,651.37
6. Step 6: Final answer
   x = 2,815.45