Finding the Fourth Proportional to 1,852.45, 2,553.28 and 1,313.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,852.45 : 2,553.28 = 1,313.38 : x
2. Step 2: Convert to fraction form
   1,852.45/2,553.28 = 1,313.38/x
3. Step 3: Cross multiply
   1,852.45x = 2,553.28 × 1,313.38
4. Step 4: Simplify right side
   1,852.45x = 3,353,426.89
5. Step 5: Solve for x
   x = 3,353,426.89/1,852.45
6. Step 6: Final answer
   x = 1,810.27