Finding the Fourth Proportional to 1,456.70, 2,182.89 and 1,407.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.70 : 2,182.89 = 1,407.02 : x
2. Step 2: Convert to fraction form
   1,456.70/2,182.89 = 1,407.02/x
3. Step 3: Cross multiply
   1,456.70x = 2,182.89 × 1,407.02
4. Step 4: Simplify right side
   1,456.70x = 3,071,369.89
5. Step 5: Solve for x
   x = 3,071,369.89/1,456.70
6. Step 6: Final answer
   x = 2,108.44