Finding the Fourth Proportional to 1,066.58, 1,598.93 and 416.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.58 : 1,598.93 = 416.86 : x
2. Step 2: Convert to fraction form
   1,066.58/1,598.93 = 416.86/x
3. Step 3: Cross multiply
   1,066.58x = 1,598.93 × 416.86
4. Step 4: Simplify right side
   1,066.58x = 666,535.00
5. Step 5: Solve for x
   x = 666,535.00/1,066.58
6. Step 6: Final answer
   x = 624.93