Finding the Fourth Proportional to 1,776.53, 2,662.35 and 1,127.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.53 : 2,662.35 = 1,127.72 : x
2. Step 2: Convert to fraction form
   1,776.53/2,662.35 = 1,127.72/x
3. Step 3: Cross multiply
   1,776.53x = 2,662.35 × 1,127.72
4. Step 4: Simplify right side
   1,776.53x = 3,002,385.34
5. Step 5: Solve for x
   x = 3,002,385.34/1,776.53
6. Step 6: Final answer
   x = 1,690.03