Finding the Fourth Proportional to 2,978.76, 4,111.93 and 2,037.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.76 : 4,111.93 = 2,037.75 : x
2. Step 2: Convert to fraction form
   2,978.76/4,111.93 = 2,037.75/x
3. Step 3: Cross multiply
   2,978.76x = 4,111.93 × 2,037.75
4. Step 4: Simplify right side
   2,978.76x = 8,379,085.36
5. Step 5: Solve for x
   x = 8,379,085.36/2,978.76
6. Step 6: Final answer
   x = 2,812.94