Finding the Fourth Proportional to 2,020,665.48, 2,788,319.88 and 1,115,189.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020,665.48 : 2,788,319.88 = 1,115,189.16 : x
2. Step 2: Convert to fraction form
   2,020,665.48/2,788,319.88 = 1,115,189.16/x
3. Step 3: Cross multiply
   2,020,665.48x = 2,788,319.88 × 1,115,189.16
4. Step 4: Simplify right side
   2,020,665.48x = 3,109,504,104,788.50
5. Step 5: Solve for x
   x = 3,109,504,104,788.50/2,020,665.48
6. Step 6: Final answer
   x = 1,538,851.50