Finding the Fourth Proportional to 1,776.01, 2,661.59 and 1,125.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.01 : 2,661.59 = 1,125.58 : x
2. Step 2: Convert to fraction form
   1,776.01/2,661.59 = 1,125.58/x
3. Step 3: Cross multiply
   1,776.01x = 2,661.59 × 1,125.58
4. Step 4: Simplify right side
   1,776.01x = 2,995,832.47
5. Step 5: Solve for x
   x = 2,995,832.47/1,776.01
6. Step 6: Final answer
   x = 1,686.83