Finding the Fourth Proportional to 1,123.95, 1,682.72 and 893.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.95 : 1,682.72 = 893.16 : x
2. Step 2: Convert to fraction form
   1,123.95/1,682.72 = 893.16/x
3. Step 3: Cross multiply
   1,123.95x = 1,682.72 × 893.16
4. Step 4: Simplify right side
   1,123.95x = 1,502,938.20
5. Step 5: Solve for x
   x = 1,502,938.20/1,123.95
6. Step 6: Final answer
   x = 1,337.19