Finding the Fourth Proportional to 1,408,061.21, 2,112,173.47 and 543,501.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408,061.21 : 2,112,173.47 = 543,501.08 : x
2. Step 2: Convert to fraction form
   1,408,061.21/2,112,173.47 = 543,501.08/x
3. Step 3: Cross multiply
   1,408,061.21x = 2,112,173.47 × 543,501.08
4. Step 4: Simplify right side
   1,408,061.21x = 1,147,968,560,131.51
5. Step 5: Solve for x
   x = 1,147,968,560,131.51/1,408,061.21
6. Step 6: Final answer
   x = 815,283.14