Finding the Fourth Proportional to 1,905.27, 2,628.80 and 1,406.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905.27 : 2,628.80 = 1,406.97 : x
2. Step 2: Convert to fraction form
   1,905.27/2,628.80 = 1,406.97/x
3. Step 3: Cross multiply
   1,905.27x = 2,628.80 × 1,406.97
4. Step 4: Simplify right side
   1,905.27x = 3,698,648.89
5. Step 5: Solve for x
   x = 3,698,648.89/1,905.27
6. Step 6: Final answer
   x = 1,941.27