Finding the Fourth Proportional to 1,562.56, 2,156.28 and 899.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.56 : 2,156.28 = 899.32 : x
2. Step 2: Convert to fraction form
   1,562.56/2,156.28 = 899.32/x
3. Step 3: Cross multiply
   1,562.56x = 2,156.28 × 899.32
4. Step 4: Simplify right side
   1,562.56x = 1,939,185.73
5. Step 5: Solve for x
   x = 1,939,185.73/1,562.56
6. Step 6: Final answer
   x = 1,241.03