Finding the Fourth Proportional to 1,492.07, 2,059.61 and 1,281.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.07 : 2,059.61 = 1,281.40 : x
2. Step 2: Convert to fraction form
   1,492.07/2,059.61 = 1,281.40/x
3. Step 3: Cross multiply
   1,492.07x = 2,059.61 × 1,281.40
4. Step 4: Simplify right side
   1,492.07x = 2,639,185.86
5. Step 5: Solve for x
   x = 2,639,185.86/1,492.07
6. Step 6: Final answer
   x = 1,768.81