Finding the Fourth Proportional to 1,662.51, 2,294.49 and 999.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.51 : 2,294.49 = 999.53 : x
2. Step 2: Convert to fraction form
   1,662.51/2,294.49 = 999.53/x
3. Step 3: Cross multiply
   1,662.51x = 2,294.49 × 999.53
4. Step 4: Simplify right side
   1,662.51x = 2,293,411.59
5. Step 5: Solve for x
   x = 2,293,411.59/1,662.51
6. Step 6: Final answer
   x = 1,379.49