Finding the Fourth Proportional to 1,030.42, 1,545.72 and 299.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,030.42 : 1,545.72 = 299.98 : x
2. Step 2: Convert to fraction form
   1,030.42/1,545.72 = 299.98/x
3. Step 3: Cross multiply
   1,030.42x = 1,545.72 × 299.98
4. Step 4: Simplify right side
   1,030.42x = 463,685.09
5. Step 5: Solve for x
   x = 463,685.09/1,030.42
6. Step 6: Final answer
   x = 450.00