Finding the Fourth Proportional to 1,499.56, 2,242.77 and 912.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.56 : 2,242.77 = 912.94 : x
2. Step 2: Convert to fraction form
   1,499.56/2,242.77 = 912.94/x
3. Step 3: Cross multiply
   1,499.56x = 2,242.77 × 912.94
4. Step 4: Simplify right side
   1,499.56x = 2,047,514.44
5. Step 5: Solve for x
   x = 2,047,514.44/1,499.56
6. Step 6: Final answer
   x = 1,365.41