Finding the Fourth Proportional to 1,426,403.34, 2,139,737.76 and 515,814.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426,403.34 : 2,139,737.76 = 515,814.03 : x
2. Step 2: Convert to fraction form
   1,426,403.34/2,139,737.76 = 515,814.03/x
3. Step 3: Cross multiply
   1,426,403.34x = 2,139,737.76 × 515,814.03
4. Step 4: Simplify right side
   1,426,403.34x = 1,103,706,757,128.77
5. Step 5: Solve for x
   x = 1,103,706,757,128.77/1,426,403.34
6. Step 6: Final answer
   x = 773,769.05