Finding the Fourth Proportional to 1,074.09, 1,612.59 and 554.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.09 : 1,612.59 = 554.52 : x
2. Step 2: Convert to fraction form
   1,074.09/1,612.59 = 554.52/x
3. Step 3: Cross multiply
   1,074.09x = 1,612.59 × 554.52
4. Step 4: Simplify right side
   1,074.09x = 894,213.41
5. Step 5: Solve for x
   x = 894,213.41/1,074.09
6. Step 6: Final answer
   x = 832.53