Finding the Fourth Proportional to 1,054.03, 1,454.56 and 612.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.03 : 1,454.56 = 612.02 : x
2. Step 2: Convert to fraction form
   1,054.03/1,454.56 = 612.02/x
3. Step 3: Cross multiply
   1,054.03x = 1,454.56 × 612.02
4. Step 4: Simplify right side
   1,054.03x = 890,219.81
5. Step 5: Solve for x
   x = 890,219.81/1,054.03
6. Step 6: Final answer
   x = 844.59