Finding the Fourth Proportional to 2,511,892.10, 3,768,068.55 and 828,999.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,511,892.10 : 3,768,068.55 = 828,999.30 : x
2. Step 2: Convert to fraction form
   2,511,892.10/3,768,068.55 = 828,999.30/x
3. Step 3: Cross multiply
   2,511,892.10x = 3,768,068.55 × 828,999.30
4. Step 4: Simplify right side
   2,511,892.10x = 3,123,726,190,302.02
5. Step 5: Solve for x
   x = 3,123,726,190,302.02/2,511,892.10
6. Step 6: Final answer
   x = 1,243,574.99