Finding the Fourth Proportional to 2,211.33, 3,316.42 and 1,430.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,211.33 : 3,316.42 = 1,430.73 : x
2. Step 2: Convert to fraction form
   2,211.33/3,316.42 = 1,430.73/x
3. Step 3: Cross multiply
   2,211.33x = 3,316.42 × 1,430.73
4. Step 4: Simplify right side
   2,211.33x = 4,744,901.59
5. Step 5: Solve for x
   x = 4,744,901.59/2,211.33
6. Step 6: Final answer
   x = 2,145.72