Finding the Fourth Proportional to 2,547.69, 3,820.28 and 904.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.69 : 3,820.28 = 904.01 : x
2. Step 2: Convert to fraction form
   2,547.69/3,820.28 = 904.01/x
3. Step 3: Cross multiply
   2,547.69x = 3,820.28 × 904.01
4. Step 4: Simplify right side
   2,547.69x = 3,453,547.70
5. Step 5: Solve for x
   x = 3,453,547.70/2,547.69
6. Step 6: Final answer
   x = 1,355.56