Finding the Fourth Proportional to 1,971.83, 2,721.38 and 1,906.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,971.83 : 2,721.38 = 1,906.94 : x
2. Step 2: Convert to fraction form
   1,971.83/2,721.38 = 1,906.94/x
3. Step 3: Cross multiply
   1,971.83x = 2,721.38 × 1,906.94
4. Step 4: Simplify right side
   1,971.83x = 5,189,485.24
5. Step 5: Solve for x
   x = 5,189,485.24/1,971.83
6. Step 6: Final answer
   x = 2,631.82