Finding the Fourth Proportional to 1,048,164.90, 1,570,886.55 and 486,003.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048,164.90 : 1,570,886.55 = 486,003.30 : x
2. Step 2: Convert to fraction form
   1,048,164.90/1,570,886.55 = 486,003.30/x
3. Step 3: Cross multiply
   1,048,164.90x = 1,570,886.55 × 486,003.30
4. Step 4: Simplify right side
   1,048,164.90x = 763,456,047,225.62
5. Step 5: Solve for x
   x = 763,456,047,225.62/1,048,164.90
6. Step 6: Final answer
   x = 728,373.99