Finding the Fourth Proportional to 1,077.82, 1,624.06 and 887.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.82 : 1,624.06 = 887.10 : x
2. Step 2: Convert to fraction form
   1,077.82/1,624.06 = 887.10/x
3. Step 3: Cross multiply
   1,077.82x = 1,624.06 × 887.10
4. Step 4: Simplify right side
   1,077.82x = 1,440,695.51
5. Step 5: Solve for x
   x = 1,440,695.51/1,077.82
6. Step 6: Final answer
   x = 1,336.68