Finding the Fourth Proportional to 1,488.48, 2,051.73 and 1,397.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.48 : 2,051.73 = 1,397.31 : x
2. Step 2: Convert to fraction form
   1,488.48/2,051.73 = 1,397.31/x
3. Step 3: Cross multiply
   1,488.48x = 2,051.73 × 1,397.31
4. Step 4: Simplify right side
   1,488.48x = 2,866,902.85
5. Step 5: Solve for x
   x = 2,866,902.85/1,488.48
6. Step 6: Final answer
   x = 1,926.06