Finding the Fourth Proportional to 2,820.37, 4,230.72 and 1,088.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.37 : 4,230.72 = 1,088.98 : x
2. Step 2: Convert to fraction form
   2,820.37/4,230.72 = 1,088.98/x
3. Step 3: Cross multiply
   2,820.37x = 4,230.72 × 1,088.98
4. Step 4: Simplify right side
   2,820.37x = 4,607,169.47
5. Step 5: Solve for x
   x = 4,607,169.47/2,820.37
6. Step 6: Final answer
   x = 1,633.53