Finding the Fourth Proportional to 1,018.16, 1,525.98 and 469.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.16 : 1,525.98 = 469.58 : x
2. Step 2: Convert to fraction form
   1,018.16/1,525.98 = 469.58/x
3. Step 3: Cross multiply
   1,018.16x = 1,525.98 × 469.58
4. Step 4: Simplify right side
   1,018.16x = 716,569.69
5. Step 5: Solve for x
   x = 716,569.69/1,018.16
6. Step 6: Final answer
   x = 703.79