Finding the Fourth Proportional to 1,495.89, 2,243.94 and 455.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,495.89 : 2,243.94 = 455.98 : x
2. Step 2: Convert to fraction form
   1,495.89/2,243.94 = 455.98/x
3. Step 3: Cross multiply
   1,495.89x = 2,243.94 × 455.98
4. Step 4: Simplify right side
   1,495.89x = 1,023,191.76
5. Step 5: Solve for x
   x = 1,023,191.76/1,495.89
6. Step 6: Final answer
   x = 684.00