Finding the Fourth Proportional to 2,808,692.88, 4,213,155.96 and 915,450.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,808,692.88 : 4,213,155.96 = 915,450.72 : x
2. Step 2: Convert to fraction form
   2,808,692.88/4,213,155.96 = 915,450.72/x
3. Step 3: Cross multiply
   2,808,692.88x = 4,213,155.96 × 915,450.72
4. Step 4: Simplify right side
   2,808,692.88x = 3,856,936,657,054.29
5. Step 5: Solve for x
   x = 3,856,936,657,054.29/2,808,692.88
6. Step 6: Final answer
   x = 1,373,214.10