Finding the Fourth Proportional to 1,374.04, 1,896.28 and 784.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.04 : 1,896.28 = 784.56 : x
2. Step 2: Convert to fraction form
   1,374.04/1,896.28 = 784.56/x
3. Step 3: Cross multiply
   1,374.04x = 1,896.28 × 784.56
4. Step 4: Simplify right side
   1,374.04x = 1,487,750.59
5. Step 5: Solve for x
   x = 1,487,750.59/1,374.04
6. Step 6: Final answer
   x = 1,082.76