Finding the Fourth Proportional to 2,298,890.02, 3,172,566.64 and 1,280,294.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298,890.02 : 3,172,566.64 = 1,280,294.78 : x
2. Step 2: Convert to fraction form
   2,298,890.02/3,172,566.64 = 1,280,294.78/x
3. Step 3: Cross multiply
   2,298,890.02x = 3,172,566.64 × 1,280,294.78
4. Step 4: Simplify right side
   2,298,890.02x = 4,061,820,508,394.14
5. Step 5: Solve for x
   x = 4,061,820,508,394.14/2,298,890.02
6. Step 6: Final answer
   x = 1,766,861.60