Finding the Fourth Proportional to 1,908.14, 2,630.15 and 1,347.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.14 : 2,630.15 = 1,347.72 : x
2. Step 2: Convert to fraction form
   1,908.14/2,630.15 = 1,347.72/x
3. Step 3: Cross multiply
   1,908.14x = 2,630.15 × 1,347.72
4. Step 4: Simplify right side
   1,908.14x = 3,544,705.76
5. Step 5: Solve for x
   x = 3,544,705.76/1,908.14
6. Step 6: Final answer
   x = 1,857.68