Finding the Fourth Proportional to 3,904.76, 5,858.01 and 1,307.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,904.76 : 5,858.01 = 1,307.63 : x
2. Step 2: Convert to fraction form
   3,904.76/5,858.01 = 1,307.63/x
3. Step 3: Cross multiply
   3,904.76x = 5,858.01 × 1,307.63
4. Step 4: Simplify right side
   3,904.76x = 7,660,080.33
5. Step 5: Solve for x
   x = 7,660,080.33/3,904.76
6. Step 6: Final answer
   x = 1,961.73