Finding the Fourth Proportional to 1,607.86, 2,219.88 and 1,104.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,607.86 : 2,219.88 = 1,104.55 : x
2. Step 2: Convert to fraction form
   1,607.86/2,219.88 = 1,104.55/x
3. Step 3: Cross multiply
   1,607.86x = 2,219.88 × 1,104.55
4. Step 4: Simplify right side
   1,607.86x = 2,451,968.45
5. Step 5: Solve for x
   x = 2,451,968.45/1,607.86
6. Step 6: Final answer
   x = 1,524.99