Finding the Fourth Proportional to 2,224.76, 3,070.22 and 1,230.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,224.76 : 3,070.22 = 1,230.12 : x
2. Step 2: Convert to fraction form
   2,224.76/3,070.22 = 1,230.12/x
3. Step 3: Cross multiply
   2,224.76x = 3,070.22 × 1,230.12
4. Step 4: Simplify right side
   2,224.76x = 3,776,739.03
5. Step 5: Solve for x
   x = 3,776,739.03/2,224.76
6. Step 6: Final answer
   x = 1,697.59