Finding the Fourth Proportional to 1,342.76, 1,853.73 and 902.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.76 : 1,853.73 = 902.99 : x
2. Step 2: Convert to fraction form
   1,342.76/1,853.73 = 902.99/x
3. Step 3: Cross multiply
   1,342.76x = 1,853.73 × 902.99
4. Step 4: Simplify right side
   1,342.76x = 1,673,890.38
5. Step 5: Solve for x
   x = 1,673,890.38/1,342.76
6. Step 6: Final answer
   x = 1,246.61