Finding the Fourth Proportional to 1,109.55, 1,520.07 and 1,068.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.55 : 1,520.07 = 1,068.01 : x
2. Step 2: Convert to fraction form
   1,109.55/1,520.07 = 1,068.01/x
3. Step 3: Cross multiply
   1,109.55x = 1,520.07 × 1,068.01
4. Step 4: Simplify right side
   1,109.55x = 1,623,448.16
5. Step 5: Solve for x
   x = 1,623,448.16/1,109.55
6. Step 6: Final answer
   x = 1,463.15