Finding the Fourth Proportional to 1,922.32, 2,887.80 and 1,056.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.32 : 2,887.80 = 1,056.16 : x
2. Step 2: Convert to fraction form
   1,922.32/2,887.80 = 1,056.16/x
3. Step 3: Cross multiply
   1,922.32x = 2,887.80 × 1,056.16
4. Step 4: Simplify right side
   1,922.32x = 3,049,978.85
5. Step 5: Solve for x
   x = 3,049,978.85/1,922.32
6. Step 6: Final answer
   x = 1,586.61