Finding the Fourth Proportional to 2,111,535.09, 3,166,981.88 and 691,559.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111,535.09 : 3,166,981.88 = 691,559.73 : x
2. Step 2: Convert to fraction form
   2,111,535.09/3,166,981.88 = 691,559.73/x
3. Step 3: Cross multiply
   2,111,535.09x = 3,166,981.88 × 691,559.73
4. Step 4: Simplify right side
   2,111,535.09x = 2,190,157,130,389.89
5. Step 5: Solve for x
   x = 2,190,157,130,389.89/2,111,535.09
6. Step 6: Final answer
   x = 1,037,234.54