Finding the Fourth Proportional to 1,996.08, 2,976.54 and 1,857.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,996.08 : 2,976.54 = 1,857.57 : x
2. Step 2: Convert to fraction form
   1,996.08/2,976.54 = 1,857.57/x
3. Step 3: Cross multiply
   1,996.08x = 2,976.54 × 1,857.57
4. Step 4: Simplify right side
   1,996.08x = 5,529,131.41
5. Step 5: Solve for x
   x = 5,529,131.41/1,996.08
6. Step 6: Final answer
   x = 2,769.99