Finding the Fourth Proportional to 1,488.83, 2,053.93 and 899.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.83 : 2,053.93 = 899.02 : x
2. Step 2: Convert to fraction form
   1,488.83/2,053.93 = 899.02/x
3. Step 3: Cross multiply
   1,488.83x = 2,053.93 × 899.02
4. Step 4: Simplify right side
   1,488.83x = 1,846,524.15
5. Step 5: Solve for x
   x = 1,846,524.15/1,488.83
6. Step 6: Final answer
   x = 1,240.25