Finding the Fourth Proportional to 2,190,689.55, 3,023,134.25 and 1,210,694.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190,689.55 : 3,023,134.25 = 1,210,694.18 : x
2. Step 2: Convert to fraction form
   2,190,689.55/3,023,134.25 = 1,210,694.18/x
3. Step 3: Cross multiply
   2,190,689.55x = 3,023,134.25 × 1,210,694.18
4. Step 4: Simplify right side
   2,190,689.55x = 3,660,091,020,664.52
5. Step 5: Solve for x
   x = 3,660,091,020,664.52/2,190,689.55
6. Step 6: Final answer
   x = 1,670,748.38