Finding the Fourth Proportional to 3,429,421.67, 5,142,499.55 and 1,298,146.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429,421.67 : 5,142,499.55 = 1,298,146.43 : x
2. Step 2: Convert to fraction form
   3,429,421.67/5,142,499.55 = 1,298,146.43/x
3. Step 3: Cross multiply
   3,429,421.67x = 5,142,499.55 × 1,298,146.43
4. Step 4: Simplify right side
   3,429,421.67x = 6,675,717,443,342.67
5. Step 5: Solve for x
   x = 6,675,717,443,342.67/3,429,421.67
6. Step 6: Final answer
   x = 1,946,601.52