Finding the Fourth Proportional to 2,157,931, 2,977,944.78 and 1,204,075

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,931 : 2,977,944.78 = 1,204,075 : x
2. Step 2: Convert to fraction form
   2,157,931/2,977,944.78 = 1,204,075/x
3. Step 3: Cross multiply
   2,157,931x = 2,977,944.78 × 1,204,075
4. Step 4: Simplify right side
   2,157,931x = 3,585,668,860,978.50
5. Step 5: Solve for x
   x = 3,585,668,860,978.50/2,157,931
6. Step 6: Final answer
   x = 1,661,623.50