Finding the Fourth Proportional to 3,666.96, 5,501.34 and 1,069.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666.96 : 5,501.34 = 1,069.88 : x
2. Step 2: Convert to fraction form
   3,666.96/5,501.34 = 1,069.88/x
3. Step 3: Cross multiply
   3,666.96x = 5,501.34 × 1,069.88
4. Step 4: Simplify right side
   3,666.96x = 5,885,746.13
5. Step 5: Solve for x
   x = 5,885,746.13/3,666.96
6. Step 6: Final answer
   x = 1,605.08