Finding the Fourth Proportional to 1,227,196.68, 1,693,444.89 and 768,290.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227,196.68 : 1,693,444.89 = 768,290.23 : x
2. Step 2: Convert to fraction form
   1,227,196.68/1,693,444.89 = 768,290.23/x
3. Step 3: Cross multiply
   1,227,196.68x = 1,693,444.89 × 768,290.23
4. Step 4: Simplify right side
   1,227,196.68x = 1,301,057,164,030.42
5. Step 5: Solve for x
   x = 1,301,057,164,030.42/1,227,196.68
6. Step 6: Final answer
   x = 1,060,186.35