Finding the Fourth Proportional to 1,910.75, 2,635.71 and 1,201.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,910.75 : 2,635.71 = 1,201.47 : x
2. Step 2: Convert to fraction form
   1,910.75/2,635.71 = 1,201.47/x
3. Step 3: Cross multiply
   1,910.75x = 2,635.71 × 1,201.47
4. Step 4: Simplify right side
   1,910.75x = 3,166,722.46
5. Step 5: Solve for x
   x = 3,166,722.46/1,910.75
6. Step 6: Final answer
   x = 1,657.32