Finding the Fourth Proportional to 1,381.98, 1,907.16 and 752.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.98 : 1,907.16 = 752.54 : x
2. Step 2: Convert to fraction form
   1,381.98/1,907.16 = 752.54/x
3. Step 3: Cross multiply
   1,381.98x = 1,907.16 × 752.54
4. Step 4: Simplify right side
   1,381.98x = 1,435,212.98
5. Step 5: Solve for x
   x = 1,435,212.98/1,381.98
6. Step 6: Final answer
   x = 1,038.52