Finding the Fourth Proportional to 1,929.98, 2,894.72 and 543.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929.98 : 2,894.72 = 543.43 : x
2. Step 2: Convert to fraction form
   1,929.98/2,894.72 = 543.43/x
3. Step 3: Cross multiply
   1,929.98x = 2,894.72 × 543.43
4. Step 4: Simplify right side
   1,929.98x = 1,573,075.05
5. Step 5: Solve for x
   x = 1,573,075.05/1,929.98
6. Step 6: Final answer
   x = 815.07