Finding the Fourth Proportional to 1,722.98, 2,581.62 and 900.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.98 : 2,581.62 = 900.02 : x
2. Step 2: Convert to fraction form
   1,722.98/2,581.62 = 900.02/x
3. Step 3: Cross multiply
   1,722.98x = 2,581.62 × 900.02
4. Step 4: Simplify right side
   1,722.98x = 2,323,496.72
5. Step 5: Solve for x
   x = 2,323,496.72/1,722.98
6. Step 6: Final answer
   x = 1,348.54