Finding the Fourth Proportional to 1,813,978.57, 2,721,361.48 and 551,773.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,813,978.57 : 2,721,361.48 = 551,773.39 : x
2. Step 2: Convert to fraction form
   1,813,978.57/2,721,361.48 = 551,773.39/x
3. Step 3: Cross multiply
   1,813,978.57x = 2,721,361.48 × 551,773.39
4. Step 4: Simplify right side
   1,813,978.57x = 1,501,574,849,235.02
5. Step 5: Solve for x
   x = 1,501,574,849,235.02/1,813,978.57
6. Step 6: Final answer
   x = 827,779.82