Finding the Fourth Proportional to 1,373.79, 1,895.30 and 784.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.79 : 1,895.30 = 784.02 : x
2. Step 2: Convert to fraction form
   1,373.79/1,895.30 = 784.02/x
3. Step 3: Cross multiply
   1,373.79x = 1,895.30 × 784.02
4. Step 4: Simplify right side
   1,373.79x = 1,485,949.19
5. Step 5: Solve for x
   x = 1,485,949.19/1,373.79
6. Step 6: Final answer
   x = 1,081.64