Finding the Fourth Proportional to 1,418.86, 1,956.85 and 1,385.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.86 : 1,956.85 = 1,385.04 : x
2. Step 2: Convert to fraction form
   1,418.86/1,956.85 = 1,385.04/x
3. Step 3: Cross multiply
   1,418.86x = 1,956.85 × 1,385.04
4. Step 4: Simplify right side
   1,418.86x = 2,710,315.52
5. Step 5: Solve for x
   x = 2,710,315.52/1,418.86
6. Step 6: Final answer
   x = 1,910.21