Finding the Fourth Proportional to 1,294,390.67, 1,786,182.27 and 742,978.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,294,390.67 : 1,786,182.27 = 742,978.98 : x
2. Step 2: Convert to fraction form
   1,294,390.67/1,786,182.27 = 742,978.98/x
3. Step 3: Cross multiply
   1,294,390.67x = 1,786,182.27 × 742,978.98
4. Step 4: Simplify right side
   1,294,390.67x = 1,327,095,881,058.68
5. Step 5: Solve for x
   x = 1,327,095,881,058.68/1,294,390.67
6. Step 6: Final answer
   x = 1,025,266.88