Finding the Fourth Proportional to 2,430.56, 3,644.76 and 698.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430.56 : 3,644.76 = 698.76 : x
2. Step 2: Convert to fraction form
   2,430.56/3,644.76 = 698.76/x
3. Step 3: Cross multiply
   2,430.56x = 3,644.76 × 698.76
4. Step 4: Simplify right side
   2,430.56x = 2,546,812.50
5. Step 5: Solve for x
   x = 2,546,812.50/2,430.56
6. Step 6: Final answer
   x = 1,047.83