Finding the Fourth Proportional to 1,590,457.77, 2,194,807.59 and 865,288.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590,457.77 : 2,194,807.59 = 865,288.94 : x
2. Step 2: Convert to fraction form
   1,590,457.77/2,194,807.59 = 865,288.94/x
3. Step 3: Cross multiply
   1,590,457.77x = 2,194,807.59 × 865,288.94
4. Step 4: Simplify right side
   1,590,457.77x = 1,899,142,722,081.02
5. Step 5: Solve for x
   x = 1,899,142,722,081.02/1,590,457.77
6. Step 6: Final answer
   x = 1,194,085.60