Finding the Fourth Proportional to 1,562.58, 2,156.22 and 899.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.58 : 2,156.22 = 899.37 : x
2. Step 2: Convert to fraction form
   1,562.58/2,156.22 = 899.37/x
3. Step 3: Cross multiply
   1,562.58x = 2,156.22 × 899.37
4. Step 4: Simplify right side
   1,562.58x = 1,939,239.58
5. Step 5: Solve for x
   x = 1,939,239.58/1,562.58
6. Step 6: Final answer
   x = 1,241.05