Finding the Fourth Proportional to 692,930, 956,243.88 and 374,978

Step by Step Solution

1. Step 1: Write the proportion equation
   692,930 : 956,243.88 = 374,978 : x
2. Step 2: Convert to fraction form
   692,930/956,243.88 = 374,978/x
3. Step 3: Cross multiply
   692,930x = 956,243.88 × 374,978
4. Step 4: Simplify right side
   692,930x = 358,570,417,634.64
5. Step 5: Solve for x
   x = 358,570,417,634.64/692,930
6. Step 6: Final answer
   x = 517,469.90