Finding the Fourth Proportional to 1,374.15, 1,895.61 and 902.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.15 : 1,895.61 = 902.82 : x
2. Step 2: Convert to fraction form
   1,374.15/1,895.61 = 902.82/x
3. Step 3: Cross multiply
   1,374.15x = 1,895.61 × 902.82
4. Step 4: Simplify right side
   1,374.15x = 1,711,394.62
5. Step 5: Solve for x
   x = 1,711,394.62/1,374.15
6. Step 6: Final answer
   x = 1,245.42