Finding the Fourth Proportional to 1,601.34, 2,209.98 and 902.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.34 : 2,209.98 = 902.71 : x
2. Step 2: Convert to fraction form
   1,601.34/2,209.98 = 902.71/x
3. Step 3: Cross multiply
   1,601.34x = 2,209.98 × 902.71
4. Step 4: Simplify right side
   1,601.34x = 1,994,971.05
5. Step 5: Solve for x
   x = 1,994,971.05/1,601.34
6. Step 6: Final answer
   x = 1,245.81