Finding the Fourth Proportional to 1,089.01, 1,499.83 and 1,012.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089.01 : 1,499.83 = 1,012.47 : x
2. Step 2: Convert to fraction form
   1,089.01/1,499.83 = 1,012.47/x
3. Step 3: Cross multiply
   1,089.01x = 1,499.83 × 1,012.47
4. Step 4: Simplify right side
   1,089.01x = 1,518,532.88
5. Step 5: Solve for x
   x = 1,518,532.88/1,089.01
6. Step 6: Final answer
   x = 1,394.42