Finding the Fourth Proportional to 1,375.61, 2,064.18 and 554.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.61 : 2,064.18 = 554.46 : x
2. Step 2: Convert to fraction form
   1,375.61/2,064.18 = 554.46/x
3. Step 3: Cross multiply
   1,375.61x = 2,064.18 × 554.46
4. Step 4: Simplify right side
   1,375.61x = 1,144,497.50
5. Step 5: Solve for x
   x = 1,144,497.50/1,375.61
6. Step 6: Final answer
   x = 832.00