Finding the Fourth Proportional to 3,374,389.98, 5,061,598.74 and 815,600.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,374,389.98 : 5,061,598.74 = 815,600.79 : x
2. Step 2: Convert to fraction form
   3,374,389.98/5,061,598.74 = 815,600.79/x
3. Step 3: Cross multiply
   3,374,389.98x = 5,061,598.74 × 815,600.79
4. Step 4: Simplify right side
   3,374,389.98x = 4,128,243,931,007.01
5. Step 5: Solve for x
   x = 4,128,243,931,007.01/3,374,389.98
6. Step 6: Final answer
   x = 1,223,404.51