Finding the Fourth Proportional to 1,420,123.65, 1,959,777.83 and 775,543.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420,123.65 : 1,959,777.83 = 775,543.83 : x
2. Step 2: Convert to fraction form
   1,420,123.65/1,959,777.83 = 775,543.83/x
3. Step 3: Cross multiply
   1,420,123.65x = 1,959,777.83 × 775,543.83
4. Step 4: Simplify right side
   1,420,123.65x = 1,519,893,604,227.29
5. Step 5: Solve for x
   x = 1,519,893,604,227.29/1,420,123.65
6. Step 6: Final answer
   x = 1,070,254.41