Finding the Fourth Proportional to 2,547.81, 3,821.76 and 904.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.81 : 3,821.76 = 904.32 : x
2. Step 2: Convert to fraction form
   2,547.81/3,821.76 = 904.32/x
3. Step 3: Cross multiply
   2,547.81x = 3,821.76 × 904.32
4. Step 4: Simplify right side
   2,547.81x = 3,456,094.00
5. Step 5: Solve for x
   x = 3,456,094.00/2,547.81
6. Step 6: Final answer
   x = 1,356.50