Finding the Fourth Proportional to 3,837,690.72, 5,756,455.28 and 1,279,090.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,837,690.72 : 5,756,455.28 = 1,279,090.72 : x
2. Step 2: Convert to fraction form
   3,837,690.72/5,756,455.28 = 1,279,090.72/x
3. Step 3: Cross multiply
   3,837,690.72x = 5,756,455.28 × 1,279,090.72
4. Step 4: Simplify right side
   3,837,690.72x = 7,363,028,528,743.00
5. Step 5: Solve for x
   x = 7,363,028,528,743.00/3,837,690.72
6. Step 6: Final answer
   x = 1,918,609.15