Finding the Fourth Proportional to 1,351.09, 1,864.43 and 753.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.09 : 1,864.43 = 753.57 : x
2. Step 2: Convert to fraction form
   1,351.09/1,864.43 = 753.57/x
3. Step 3: Cross multiply
   1,351.09x = 1,864.43 × 753.57
4. Step 4: Simplify right side
   1,351.09x = 1,404,970.77
5. Step 5: Solve for x
   x = 1,404,970.77/1,351.09
6. Step 6: Final answer
   x = 1,039.88