Finding the Fourth Proportional to 1,562.01, 2,155.59 and 899.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.01 : 2,155.59 = 899.04 : x
2. Step 2: Convert to fraction form
   1,562.01/2,155.59 = 899.04/x
3. Step 3: Cross multiply
   1,562.01x = 2,155.59 × 899.04
4. Step 4: Simplify right side
   1,562.01x = 1,937,961.63
5. Step 5: Solve for x
   x = 1,937,961.63/1,562.01
6. Step 6: Final answer
   x = 1,240.68