Finding the Fourth Proportional to 3,715.82, 5,127.74 and 2,100.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,715.82 : 5,127.74 = 2,100.59 : x
2. Step 2: Convert to fraction form
   3,715.82/5,127.74 = 2,100.59/x
3. Step 3: Cross multiply
   3,715.82x = 5,127.74 × 2,100.59
4. Step 4: Simplify right side
   3,715.82x = 10,771,243.22
5. Step 5: Solve for x
   x = 10,771,243.22/3,715.82
6. Step 6: Final answer
   x = 2,898.76