Finding the Fourth Proportional to 1,417.75, 2,128.38 and 801.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.75 : 2,128.38 = 801.95 : x
2. Step 2: Convert to fraction form
   1,417.75/2,128.38 = 801.95/x
3. Step 3: Cross multiply
   1,417.75x = 2,128.38 × 801.95
4. Step 4: Simplify right side
   1,417.75x = 1,706,854.34
5. Step 5: Solve for x
   x = 1,706,854.34/1,417.75
6. Step 6: Final answer
   x = 1,203.92