Finding the Fourth Proportional to 1,048.42, 1,446.69 and 655.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048.42 : 1,446.69 = 655.57 : x
2. Step 2: Convert to fraction form
   1,048.42/1,446.69 = 655.57/x
3. Step 3: Cross multiply
   1,048.42x = 1,446.69 × 655.57
4. Step 4: Simplify right side
   1,048.42x = 948,406.56
5. Step 5: Solve for x
   x = 948,406.56/1,048.42
6. Step 6: Final answer
   x = 904.61