Finding the Fourth Proportional to 2,112.03, 2,914.72 and 1,272.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.03 : 2,914.72 = 1,272.99 : x
2. Step 2: Convert to fraction form
   2,112.03/2,914.72 = 1,272.99/x
3. Step 3: Cross multiply
   2,112.03x = 2,914.72 × 1,272.99
4. Step 4: Simplify right side
   2,112.03x = 3,710,409.41
5. Step 5: Solve for x
   x = 3,710,409.41/2,112.03
6. Step 6: Final answer
   x = 1,756.80