Finding the Fourth Proportional to 1,224.52, 1,835.61 and 784.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224.52 : 1,835.61 = 784.42 : x
2. Step 2: Convert to fraction form
   1,224.52/1,835.61 = 784.42/x
3. Step 3: Cross multiply
   1,224.52x = 1,835.61 × 784.42
4. Step 4: Simplify right side
   1,224.52x = 1,439,889.20
5. Step 5: Solve for x
   x = 1,439,889.20/1,224.52
6. Step 6: Final answer
   x = 1,175.88