Finding the Fourth Proportional to 1,272.61, 1,752.50 and 1,086.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272.61 : 1,752.50 = 1,086.04 : x
2. Step 2: Convert to fraction form
   1,272.61/1,752.50 = 1,086.04/x
3. Step 3: Cross multiply
   1,272.61x = 1,752.50 × 1,086.04
4. Step 4: Simplify right side
   1,272.61x = 1,903,290.01
5. Step 5: Solve for x
   x = 1,903,290.01/1,272.61
6. Step 6: Final answer
   x = 1,495.58