Finding the Fourth Proportional to 1,434.86, 2,151.94 and 394.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.86 : 2,151.94 = 394.82 : x
2. Step 2: Convert to fraction form
   1,434.86/2,151.94 = 394.82/x
3. Step 3: Cross multiply
   1,434.86x = 2,151.94 × 394.82
4. Step 4: Simplify right side
   1,434.86x = 849,617.94
5. Step 5: Solve for x
   x = 849,617.94/1,434.86
6. Step 6: Final answer
   x = 592.12