Finding the Fourth Proportional to 1,530.56, 2,290.48 and 1,098.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.56 : 2,290.48 = 1,098.56 : x
2. Step 2: Convert to fraction form
   1,530.56/2,290.48 = 1,098.56/x
3. Step 3: Cross multiply
   1,530.56x = 2,290.48 × 1,098.56
4. Step 4: Simplify right side
   1,530.56x = 2,516,229.71
5. Step 5: Solve for x
   x = 2,516,229.71/1,530.56
6. Step 6: Final answer
   x = 1,643.99