Finding the Fourth Proportional to 1,317.02, 1,814.72 and 896.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317.02 : 1,814.72 = 896.63 : x
2. Step 2: Convert to fraction form
   1,317.02/1,814.72 = 896.63/x
3. Step 3: Cross multiply
   1,317.02x = 1,814.72 × 896.63
4. Step 4: Simplify right side
   1,317.02x = 1,627,139.17
5. Step 5: Solve for x
   x = 1,627,139.17/1,317.02
6. Step 6: Final answer
   x = 1,235.47