Finding the Fourth Proportional to 1,108.58, 1,662.50 and 368.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108.58 : 1,662.50 = 368.01 : x
2. Step 2: Convert to fraction form
   1,108.58/1,662.50 = 368.01/x
3. Step 3: Cross multiply
   1,108.58x = 1,662.50 × 368.01
4. Step 4: Simplify right side
   1,108.58x = 611,814.78
5. Step 5: Solve for x
   x = 611,814.78/1,108.58
6. Step 6: Final answer
   x = 551.89