Finding the Fourth Proportional to 1,323.69, 1,985.25 and 542.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.69 : 1,985.25 = 542.93 : x
2. Step 2: Convert to fraction form
   1,323.69/1,985.25 = 542.93/x
3. Step 3: Cross multiply
   1,323.69x = 1,985.25 × 542.93
4. Step 4: Simplify right side
   1,323.69x = 1,077,843.89
5. Step 5: Solve for x
   x = 1,077,843.89/1,323.69
6. Step 6: Final answer
   x = 814.27