Finding the Fourth Proportional to 1,618.52, 2,429.73 and 1,272.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.52 : 2,429.73 = 1,272.96 : x
2. Step 2: Convert to fraction form
   1,618.52/2,429.73 = 1,272.96/x
3. Step 3: Cross multiply
   1,618.52x = 2,429.73 × 1,272.96
4. Step 4: Simplify right side
   1,618.52x = 3,092,949.10
5. Step 5: Solve for x
   x = 3,092,949.10/1,618.52
6. Step 6: Final answer
   x = 1,910.98