Finding the Fourth Proportional to 1,373.98, 1,895.60 and 784.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.98 : 1,895.60 = 784.30 : x
2. Step 2: Convert to fraction form
   1,373.98/1,895.60 = 784.30/x
3. Step 3: Cross multiply
   1,373.98x = 1,895.60 × 784.30
4. Step 4: Simplify right side
   1,373.98x = 1,486,719.08
5. Step 5: Solve for x
   x = 1,486,719.08/1,373.98
6. Step 6: Final answer
   x = 1,082.05