Finding the Fourth Proportional to 1,622.31, 2,434.38 and 698.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.31 : 2,434.38 = 698.76 : x
2. Step 2: Convert to fraction form
   1,622.31/2,434.38 = 698.76/x
3. Step 3: Cross multiply
   1,622.31x = 2,434.38 × 698.76
4. Step 4: Simplify right side
   1,622.31x = 1,701,047.37
5. Step 5: Solve for x
   x = 1,701,047.37/1,622.31
6. Step 6: Final answer
   x = 1,048.53