Finding the Fourth Proportional to 1,343.48, 1,853.84 and 784.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.48 : 1,853.84 = 784.08 : x
2. Step 2: Convert to fraction form
   1,343.48/1,853.84 = 784.08/x
3. Step 3: Cross multiply
   1,343.48x = 1,853.84 × 784.08
4. Step 4: Simplify right side
   1,343.48x = 1,453,554.95
5. Step 5: Solve for x
   x = 1,453,554.95/1,343.48
6. Step 6: Final answer
   x = 1,081.94