Finding the Fourth Proportional to 1,049.98, 1,575.30 and 433.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.98 : 1,575.30 = 433.98 : x
2. Step 2: Convert to fraction form
   1,049.98/1,575.30 = 433.98/x
3. Step 3: Cross multiply
   1,049.98x = 1,575.30 × 433.98
4. Step 4: Simplify right side
   1,049.98x = 683,647.37
5. Step 5: Solve for x
   x = 683,647.37/1,049.98
6. Step 6: Final answer
   x = 651.10