Finding the Fourth Proportional to 1,036,626.30, 1,555,018.16 and 353,300.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036,626.30 : 1,555,018.16 = 353,300.78 : x
2. Step 2: Convert to fraction form
   1,036,626.30/1,555,018.16 = 353,300.78/x
3. Step 3: Cross multiply
   1,036,626.30x = 1,555,018.16 × 353,300.78
4. Step 4: Simplify right side
   1,036,626.30x = 549,389,128,842.17
5. Step 5: Solve for x
   x = 549,389,128,842.17/1,036,626.30
6. Step 6: Final answer
   x = 529,978.00