Finding the Fourth Proportional to 1,050.56, 1,450.29 and 813.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.56 : 1,450.29 = 813.98 : x
2. Step 2: Convert to fraction form
   1,050.56/1,450.29 = 813.98/x
3. Step 3: Cross multiply
   1,050.56x = 1,450.29 × 813.98
4. Step 4: Simplify right side
   1,050.56x = 1,180,507.05
5. Step 5: Solve for x
   x = 1,180,507.05/1,050.56
6. Step 6: Final answer
   x = 1,123.69