Finding the Fourth Proportional to 3,077,915.68, 4,617,105.59 and 918,770.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,077,915.68 : 4,617,105.59 = 918,770.23 : x
2. Step 2: Convert to fraction form
   3,077,915.68/4,617,105.59 = 918,770.23/x
3. Step 3: Cross multiply
   3,077,915.68x = 4,617,105.59 × 918,770.23
4. Step 4: Simplify right side
   3,077,915.68x = 4,242,059,164,858.59
5. Step 5: Solve for x
   x = 4,242,059,164,858.59/3,077,915.68
6. Step 6: Final answer
   x = 1,378,224.62