Finding the Fourth Proportional to 2,430.72, 3,353.61 and 1,436.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430.72 : 3,353.61 = 1,436.34 : x
2. Step 2: Convert to fraction form
   2,430.72/3,353.61 = 1,436.34/x
3. Step 3: Cross multiply
   2,430.72x = 3,353.61 × 1,436.34
4. Step 4: Simplify right side
   2,430.72x = 4,816,924.19
5. Step 5: Solve for x
   x = 4,816,924.19/2,430.72
6. Step 6: Final answer
   x = 1,981.69