Finding the Fourth Proportional to 1,918,100.71, 2,876,233.06 and 906,378.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918,100.71 : 2,876,233.06 = 906,378.31 : x
2. Step 2: Convert to fraction form
   1,918,100.71/2,876,233.06 = 906,378.31/x
3. Step 3: Cross multiply
   1,918,100.71x = 2,876,233.06 × 906,378.31
4. Step 4: Simplify right side
   1,918,100.71x = 2,606,955,260,088.93
5. Step 5: Solve for x
   x = 2,606,955,260,088.93/1,918,100.71
6. Step 6: Final answer
   x = 1,359,133.67