Finding the Fourth Proportional to 1,396.74, 1,926.25 and 1,043.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.74 : 1,926.25 = 1,043.52 : x
2. Step 2: Convert to fraction form
   1,396.74/1,926.25 = 1,043.52/x
3. Step 3: Cross multiply
   1,396.74x = 1,926.25 × 1,043.52
4. Step 4: Simplify right side
   1,396.74x = 2,010,080.40
5. Step 5: Solve for x
   x = 2,010,080.40/1,396.74
6. Step 6: Final answer
   x = 1,439.12