Finding the Fourth Proportional to 1,771.67, 2,653.86 and 1,423.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,771.67 : 2,653.86 = 1,423.10 : x
2. Step 2: Convert to fraction form
   1,771.67/2,653.86 = 1,423.10/x
3. Step 3: Cross multiply
   1,771.67x = 2,653.86 × 1,423.10
4. Step 4: Simplify right side
   1,771.67x = 3,776,708.17
5. Step 5: Solve for x
   x = 3,776,708.17/1,771.67
6. Step 6: Final answer
   x = 2,131.72