Finding the Fourth Proportional to 1,776.03, 2,666.32 and 1,118.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.03 : 2,666.32 = 1,118.10 : x
2. Step 2: Convert to fraction form
   1,776.03/2,666.32 = 1,118.10/x
3. Step 3: Cross multiply
   1,776.03x = 2,666.32 × 1,118.10
4. Step 4: Simplify right side
   1,776.03x = 2,981,219.60
5. Step 5: Solve for x
   x = 2,981,219.60/1,776.03
6. Step 6: Final answer
   x = 1,678.59