Finding the Fourth Proportional to 2,103.06, 2,900.79 and 1,384.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.06 : 2,900.79 = 1,384.86 : x
2. Step 2: Convert to fraction form
   2,103.06/2,900.79 = 1,384.86/x
3. Step 3: Cross multiply
   2,103.06x = 2,900.79 × 1,384.86
4. Step 4: Simplify right side
   2,103.06x = 4,017,188.04
5. Step 5: Solve for x
   x = 4,017,188.04/2,103.06
6. Step 6: Final answer
   x = 1,910.16