Finding the Fourth Proportional to 1,373.01, 1,894.89 and 783.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.01 : 1,894.89 = 783.74 : x
2. Step 2: Convert to fraction form
   1,373.01/1,894.89 = 783.74/x
3. Step 3: Cross multiply
   1,373.01x = 1,894.89 × 783.74
4. Step 4: Simplify right side
   1,373.01x = 1,485,091.61
5. Step 5: Solve for x
   x = 1,485,091.61/1,373.01
6. Step 6: Final answer
   x = 1,081.63