Finding the Fourth Proportional to 1,355.76, 1,870.32 and 796

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.76 : 1,870.32 = 796 : x
2. Step 2: Convert to fraction form
   1,355.76/1,870.32 = 796/x
3. Step 3: Cross multiply
   1,355.76x = 1,870.32 × 796
4. Step 4: Simplify right side
   1,355.76x = 1,488,774.72
5. Step 5: Solve for x
   x = 1,488,774.72/1,355.76
6. Step 6: Final answer
   x = 1,098.11