Finding the Fourth Proportional to 1,056,142.35, 1,584,410.75 and 479,806.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056,142.35 : 1,584,410.75 = 479,806.10 : x
2. Step 2: Convert to fraction form
   1,056,142.35/1,584,410.75 = 479,806.10/x
3. Step 3: Cross multiply
   1,056,142.35x = 1,584,410.75 × 479,806.10
4. Step 4: Simplify right side
   1,056,142.35x = 760,209,941,556.06
5. Step 5: Solve for x
   x = 760,209,941,556.06/1,056,142.35
6. Step 6: Final answer
   x = 719,798.75