Finding the Fourth Proportional to 1,375.82, 2,063.98 and 554.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.82 : 2,063.98 = 554.15 : x
2. Step 2: Convert to fraction form
   1,375.82/2,063.98 = 554.15/x
3. Step 3: Cross multiply
   1,375.82x = 2,063.98 × 554.15
4. Step 4: Simplify right side
   1,375.82x = 1,143,754.52
5. Step 5: Solve for x
   x = 1,143,754.52/1,375.82
6. Step 6: Final answer
   x = 831.33