Finding the Fourth Proportional to 1,376.84, 1,899.24 and 904.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376.84 : 1,899.24 = 904.82 : x
2. Step 2: Convert to fraction form
   1,376.84/1,899.24 = 904.82/x
3. Step 3: Cross multiply
   1,376.84x = 1,899.24 × 904.82
4. Step 4: Simplify right side
   1,376.84x = 1,718,470.34
5. Step 5: Solve for x
   x = 1,718,470.34/1,376.84
6. Step 6: Final answer
   x = 1,248.13