Finding the Fourth Proportional to 2,071,736.55, 2,859,437.61 and 1,392,279.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071,736.55 : 2,859,437.61 = 1,392,279.39 : x
2. Step 2: Convert to fraction form
   2,071,736.55/2,859,437.61 = 1,392,279.39/x
3. Step 3: Cross multiply
   2,071,736.55x = 2,859,437.61 × 1,392,279.39
4. Step 4: Simplify right side
   2,071,736.55x = 3,981,136,051,393.86
5. Step 5: Solve for x
   x = 3,981,136,051,393.86/2,071,736.55
6. Step 6: Final answer
   x = 1,921,642.04