Finding the Fourth Proportional to 1,778.01, 2,664.59 and 1,127.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778.01 : 2,664.59 = 1,127.58 : x
2. Step 2: Convert to fraction form
   1,778.01/2,664.59 = 1,127.58/x
3. Step 3: Cross multiply
   1,778.01x = 2,664.59 × 1,127.58
4. Step 4: Simplify right side
   1,778.01x = 3,004,538.39
5. Step 5: Solve for x
   x = 3,004,538.39/1,778.01
6. Step 6: Final answer
   x = 1,689.83