Finding the Fourth Proportional to 3,887.71, 5,826.34 and 2,130.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,887.71 : 5,826.34 = 2,130.07 : x
2. Step 2: Convert to fraction form
   3,887.71/5,826.34 = 2,130.07/x
3. Step 3: Cross multiply
   3,887.71x = 5,826.34 × 2,130.07
4. Step 4: Simplify right side
   3,887.71x = 12,410,512.04
5. Step 5: Solve for x
   x = 12,410,512.04/3,887.71
6. Step 6: Final answer
   x = 3,192.24