Finding the Fourth Proportional to 2,723.58, 4,085.98 and 992.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.58 : 4,085.98 = 992.19 : x
2. Step 2: Convert to fraction form
   2,723.58/4,085.98 = 992.19/x
3. Step 3: Cross multiply
   2,723.58x = 4,085.98 × 992.19
4. Step 4: Simplify right side
   2,723.58x = 4,054,068.50
5. Step 5: Solve for x
   x = 4,054,068.50/2,723.58
6. Step 6: Final answer
   x = 1,488.51