Finding the Fourth Proportional to 1,814.82, 2,722.28 and 891.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.82 : 2,722.28 = 891.15 : x
2. Step 2: Convert to fraction form
   1,814.82/2,722.28 = 891.15/x
3. Step 3: Cross multiply
   1,814.82x = 2,722.28 × 891.15
4. Step 4: Simplify right side
   1,814.82x = 2,425,955.37
5. Step 5: Solve for x
   x = 2,425,955.37/1,814.82
6. Step 6: Final answer
   x = 1,336.75