Finding the Fourth Proportional to 2,543.67, 3,814.79 and 899.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.67 : 3,814.79 = 899.33 : x
2. Step 2: Convert to fraction form
   2,543.67/3,814.79 = 899.33/x
3. Step 3: Cross multiply
   2,543.67x = 3,814.79 × 899.33
4. Step 4: Simplify right side
   2,543.67x = 3,430,731.52
5. Step 5: Solve for x
   x = 3,430,731.52/2,543.67
6. Step 6: Final answer
   x = 1,348.73