Finding the Fourth Proportional to 2,141,623.61, 3,210,837.62 and 1,288,495.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141,623.61 : 3,210,837.62 = 1,288,495.34 : x
2. Step 2: Convert to fraction form
   2,141,623.61/3,210,837.62 = 1,288,495.34/x
3. Step 3: Cross multiply
   2,141,623.61x = 3,210,837.62 × 1,288,495.34
4. Step 4: Simplify right side
   2,141,623.61x = 4,137,149,300,410.67
5. Step 5: Solve for x
   x = 4,137,149,300,410.67/2,141,623.61
6. Step 6: Final answer
   x = 1,931,781.70