Finding the Fourth Proportional to 1,054.06, 1,582.60 and 591.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.06 : 1,582.60 = 591.72 : x
2. Step 2: Convert to fraction form
   1,054.06/1,582.60 = 591.72/x
3. Step 3: Cross multiply
   1,054.06x = 1,582.60 × 591.72
4. Step 4: Simplify right side
   1,054.06x = 936,456.07
5. Step 5: Solve for x
   x = 936,456.07/1,054.06
6. Step 6: Final answer
   x = 888.43