Finding the Fourth Proportional to 1,896.31, 2,610.52 and 1,564.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,896.31 : 2,610.52 = 1,564.21 : x
2. Step 2: Convert to fraction form
   1,896.31/2,610.52 = 1,564.21/x
3. Step 3: Cross multiply
   1,896.31x = 2,610.52 × 1,564.21
4. Step 4: Simplify right side
   1,896.31x = 4,083,401.49
5. Step 5: Solve for x
   x = 4,083,401.49/1,896.31
6. Step 6: Final answer
   x = 2,153.34