Finding the Fourth Proportional to 1,562.48, 2,156.27 and 899.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.48 : 2,156.27 = 899.49 : x
2. Step 2: Convert to fraction form
   1,562.48/2,156.27 = 899.49/x
3. Step 3: Cross multiply
   1,562.48x = 2,156.27 × 899.49
4. Step 4: Simplify right side
   1,562.48x = 1,939,538.80
5. Step 5: Solve for x
   x = 1,939,538.80/1,562.48
6. Step 6: Final answer
   x = 1,241.32