Finding the Fourth Proportional to 1,784.55, 2,670.69 and 1,126.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.55 : 2,670.69 = 1,126.12 : x
2. Step 2: Convert to fraction form
   1,784.55/2,670.69 = 1,126.12/x
3. Step 3: Cross multiply
   1,784.55x = 2,670.69 × 1,126.12
4. Step 4: Simplify right side
   1,784.55x = 3,007,517.42
5. Step 5: Solve for x
   x = 3,007,517.42/1,784.55
6. Step 6: Final answer
   x = 1,685.31