Finding the Fourth Proportional to 1,359.58, 1,874.93 and 912.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.58 : 1,874.93 = 912.46 : x
2. Step 2: Convert to fraction form
   1,359.58/1,874.93 = 912.46/x
3. Step 3: Cross multiply
   1,359.58x = 1,874.93 × 912.46
4. Step 4: Simplify right side
   1,359.58x = 1,710,798.63
5. Step 5: Solve for x
   x = 1,710,798.63/1,359.58
6. Step 6: Final answer
   x = 1,258.33